Answer:
Smooth endoplasmic reticulum
Explanation:
The endoplasmic reticulum is a series of interconnected channels running throughout the cytoplasm. Some endoplasmic reticular have granules called ribosomes on their surfaces. The smooth endoplasmic reticulum are more specialized responsible for synthesizing and transportation of Lipids and breaking down of toxic chemicals from all parts of the cell.
Answer:
Smooth endoplasmic reticulum Or Smooth ER
Explanation:
I was just asked this on USA test prep.
When studying planets or other objects in space, scientists can use
A.
visible light
B.
microwaves
C.
infrared radiation
D.
all of these
Please help me! If you're correct ill give you brainliest!
D
Scientists virtually use the entire spectrum of electromagnetic waves to study the universe. The different celestial objects emit or reflect different electromagnetic waves that can be detected by different sensors in satellites.
Explanation:
For example stars and supernova produce more gamma and X-rays hence this is widely used to observe and study them. Wherever there are gas clouds obscuring celestial objects, microwaves of radio waves can be used to observe the obscured objects because these waves can pass through the gas clouds and even the earth’s atmosphere . microwaves, for example, have been used to study the Cosmic Microwave Background that has been used to study the Big Bang theory of the Universe. Infrared is emitted by objects that produce heat. Therefore this type of wavelength can be used to peer in gas clouds to check for the birth of starts in planetary clouds.
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Answer:the answer is D “all of these” :)
Explanation:
In the reflex arc what is the function of the afferent fiber ?
1.to carry signal from the integration center out to the effector, so the effector can respond appropriately
2. to carry the signal from the receptor to the integration center for processing
3. it detects change
4. none of the above
Afferent nerve fibers carry signals from the somatic receptors to the posterior horn of the spinal cord or to the brainstem. So i beleive it is 4 but not too sure. Hope this helped a bit (:
The afferent fiber in a reflex arc carries signals from receptors to the central nervous system for processing, as part of the sensory path. Hence, the correct option is 2.
In the reflex arc, the function of the afferent fiber is to carry the signal from the receptor to the integration center for processing. This means that the afferent neurons, also known as sensory neurons, are responsible for conveying impulses inward towards the central nervous system (CNS) from sensory receptors in tissues and organs. They are vital in changing physical stimuli, such as touch, light, and sound into nerve impulses that can be understood and processed by the CNS.
When scientists report their results from their scientific investigations, what should scientists include and NOT include in their conclusions?
When scientists report their results from their scientific investigations, scientists should include the content that answers the following questions
Was our hypothesis correct?Do we need to run experiment again,changing a variable?If the results did not support the hypothesis then add information about reason why it happened.Scientists should not include the following
It should not oppose your results. Conclusions should not be in a negative tone.What is gene regulation
Answer:
the control of when and where proteins are made
Explanation:
apex
What genetic adaptation do the sea nomads have that affect their ability to dive ?
Sea nomads have several genetic adaptations that positively affect their ability to dive.
Explanation:
Bajau people who are deep sea divers found in parts of south east Asia are called sea nomads. They depend on the sea for a living and have been into diving before man generations. Some special genetic and physiological adaptations have helped sea nomads in diving.
Studies reveal that the Bajau people have an increased spleen size which means that they have a large reservoir for oxygenated RBCs. This variation has occurred as a result of natural selection on genetic variants in the PDE10A gene in sea nomads.
BDKRB2 is the gene affecting the diving reflex of humans. Studies have found out that there is a strong selection on the BDKRB2 gene in the Bajau people.
Write a claim in response to the following question:Why did the beef and peanuts have significantly higher amounts of chemical energy (Calories) than the plant-based foods even though they all had the Same mass. Support your claim with 3 pieces of evidence from the gallery walk.
Answer:
This is because they have higher proportion of Hydrogen than the other
Also higher C-H chemical bonds which store alot of potential energy than the other
Also due to amount of oxidation that takes place as they are converted to CO2 and water so as to relay energy is usually higher
is natural gas a limited resorce
Explanation: Natural gas is a limited resource. Natural gas is in the fossil fuel family and it's underground. I think it's pretty plentiful meaning that there's a lot in the United States of America. Many people use it for home heating instead of heating oil. Some people have oil trucks where the oil truck has to come and deliver oil to them.
So, natural gas is limited resource because it's a fossil fuel and it gives off emissions. It's in the ground and it's from years of decaying stuff. It's not like solar or wind power, it's a limited resource.
Which of the following best describes how a plant cell gets the energy it needs for cellular processes?
options:
The sugars made by photosynthesis can be used by respiration to make ATP.
ATP is transported to cells that lack chloroplasts (roots, stems, etc.).
The chloroplasts provide all the ATP needed by the plants.
In the light, the ATP comes from the chloroplasts, in the dark, from mitochondria.
Answer:
It's A
Explanation:
Cellular respiration breaks down sugar into energy that plant cells use to grow.
A plant cell gets the energy it needs for cellular processes is best described by ATP being transported to cells that lack chloroplasts(roots, stems, etc.)
What describes best how a plant cell gets the energy it needs for cellular processes?ATP is able to power cellular processes by transferring a phosphate group to another molecule.The above process of ATP being able to transfer is known as phosphorylation.ATP acts as a cell's storehouse of energy as it transfers to cells that lack chloroplasts.Active transport mechanisms do just this, expending energy(often in the form of ATP) to maintain the right concentrations of ions and molecules in the living cells.Hence, option B is the correct answer.
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2. Adenine and guanine are
double-ringed purines
single-ringed purines
double-ringed pyrimidines
D. single-ringed pyrimidines
amino acids.
Answer:
single-ringed purines
Explanation:
Adenine and guanine are purine bases. They are structures composed of a 5-sided and 6-sided ring. Cytosine and thymine are pyrimidines which are structures composed of a single 6-sided ring. Adenine binds to thymine, while cytosine binds to guanine. This relationship is a form of complementary base pairing. These complementary bases are bonded together by hydrogen bonds.
Adenine and guanine are classified as purines, which have a double-ring structure. In contrast, pyrimidines like cytosine, thymine, and uracil have a single-ring structure. In DNA, adenine pairs with thymine and guanine pairs with cytosine; in RNA, adenine pairs with uracil. Therefore, option A) is the correct.
Adenine and guanine are classified as purines. The primary structure of a purine consists of two carbon-nitrogen rings, making them double-ringed structures. In contrast, cytosine, thymine, and uracil are classified as pyrimidines, which have a single carbon-nitrogen ring as their primary structure.
In molecular biology shorthand, nitrogenous bases are known by their symbols: A, T, G, C, and U. DNA contains adenine (A), thymine (T), guanine (G), and cytosine (C), whereas RNA contains adenine (A), uracil (U), guanine (G), and cytosine (C).
How are osmosis and diffusion alike?
A. Both require additional energy provided by channel proteins.
B. Both processes occur through permeable bilayer membranes.
C. Both processes can occur across semipermeable membranes.
D. Both allow solute molecules to move across a semipermeable membrane.
Answer:
it is C. Both processes can occur across semipermeable membranes.
Explanation:
they both equalize the concentration of two solutions into a membrane. hope this is helpful to you!
Answer:
i'm super positive its c hope you do well
5 Relate How do the structures in an organism
relate to their functions?
What makes sponges unique among animals?
Sponges are unique in their simple body structure, filter-feeding method, lack of tissues and organs, and their position as some of the most primitive animals in the animal kingdom.
Sponges, also known as poriferans, are multicellular aquatic animals belonging to the phylum Porifera. They are one of the simplest groups of animals within the animal kingdom. Sponges are primarily marine organisms, although some species can be found in freshwater environments as well.
Sponges are filter feeders, meaning they extract food particles from the water as it passes through their bodies. Specialized cells called choanocytes line the internal canals and create currents that draw in water. Food particles, such as bacteria and plankton, are then trapped by these choanocytes and ingested.
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1) During dental procedures, dentists inject local anesthetics into the nerve pathway
supporting the region they are working on. These local anesthetics block Nat (sodium)
channels. Explain in detail the process of a typical action potential, and how local
anesthetics prevent the transmission of pain impulses to the brain.
Explanation:
Drugs like Novocaine, an ester, inhibit sodium channel ion exchange, leading to membrane depolarization (charges equilibrium). It stabilizes the neuronal membrane preventing transmission of nerve impulses as a local anesthetic to pain centers in the CNS.
Further Explanation:
Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficiently. Parts of a neuron are separated into the
dendrites which receive messages from other neurons allowing them to pass and some of the cell body which contains typical cell components like the nucleus, endoplasmic reticulum and mitochondria. The axon is an insulated (by the myelin sheath) tubular structure which acts as a bridge to price impulses to other neurons these also contain axon hillocks which are junctions between the axon and cell body Synapses are junctions where axons connect to dendrites of other neurons at these junctions chemical reactions occur in order to facilitate the passage of information as chemical signals. There are several neuron types which include sensory motor and into neurons which bridge the two.The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium-potassium pumps in neuronal membranes bring more Na+ out than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential
At synaptic junctions:
The action potential travels along the membrane until the synapse where it’s electrical depolarization leads to the opening of channels allowing only sodium ions to enter these flow through a presynaptic membrane until the concentration is built up, activating ion-sensitive proteins attached to vesicles containing neurotransmitters this leads to changes in the proteins leading to the fusion with the membrane of the presynaptic cell, so vesicles are open and neurotransmitter is released. The neurotransmitter diffuses across to chemical receptors on the presynaptic cell where they bind temporarily This leads to activation of specific complexes, enabling the transmission of information. Thus, the chemical signal is transferred through this neuron as an electrical impulseLearn more about the autonomic nervous system at brainly.com/question/10386413
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Local anesthetics prevent the transmission of pain impulses to the brain by blocking voltage-gated sodium (Na+) channels, which are crucial for the generation and propagation of action potentials in neurons.
An action potential is a rapid and temporary reversal of the resting membrane potential in excitable cells, such as neurons. This process allows the transmission of electrical signals along the neuron's axon to the synapse, where it can be transferred to another neuron or to a muscle cell. The typical action potential occurs in several stages:
1. Resting Membrane Potential: At rest, the inside of the neuron is negatively charged relative to the outside, typically around -70 mV. This is due to the unequal distribution of ions across the cell membrane, maintained by the sodium-potassium pump.
2. Depolarization: When a stimulus reaches the neuron and exceeds a certain threshold, voltage-gated Na+ channels open, allowing Na+ ions to rush into the cell. This influx of positive charges reduces the membrane potential, making the inside of the cell less negative (becoming more positive).
3. Peak of Action Potential: If depolarization is sufficient, the membrane potential reaches a peak, usually around +30 mV. At this point, the Na+ channels close, and the neuron begins to repolarize.
4. Repolarization: Voltage-gated potassium (K+) channels open, allowing K+ ions to move out of the cell, restoring the negative charge inside the cell. This causes the membrane potential to return towards the resting potential.
5. Hyperpolarization: Sometimes, the cell becomes more negative than the resting potential due to the continued efflux of K+ ions. This is known as hyperpolarization.
6. Return to Resting Potential: The Na+/K+ pump and leak channels eventually restore the ionic concentrations to their resting state, and the membrane potential returns to -70 mV.
Local anesthetics interfere with this process by blocking the voltage-gated Na+ channels. When these channels are blocked, Na+ ions cannot enter the cell during depolarization, and the threshold for generating an action potential cannot be reached. As a result, the signal cannot propagate along the nerve fiber, and the sensation of pain is not transmitted to the brain.
The blockade of Na+ channels by local anesthetics is use-dependent, meaning that the drugs preferentially bind to and inhibit Na+ channels that are in their active or inactive states, which occur during neuronal firing. This is why local anesthetics are more effective when the nerve is actively transmitting pain signals.
In summary, by preventing the generation and propagation of action potentials in pain-transmitting neurons, local anesthetics effectively block the sensation of pain during dental procedures.
How does lead get into water?
A-it is released into waterways with industrial waste
B-it is a byproduct of detergents interacting with organic matter
C-it occurs naturally in water
D-it leaches into water as old pipes corrode
Which part of the government has authority to enforce the clean water act?
A-president
B-congress
C-the environmental protection agency
D-U.S. forest services
Which of the following water supplies would be affected directly by groundwater contamination?
A-wells
B-lakes
C-streams
D-rivers
What role do bacteria play in an aquaponics system?
A-they transform fish waste into food
B-they enrich the water to help fish grow
C- they break down dead plant matter
D-they warn that the fish are sick
Lead can get into drinking water by entering a drinking water supply or from lead- containing piping, home plumbing or fixtures. Contamination of source water can occur due to discharge from industries that burn fossil fuels, mine, smelt, and manufacture.
that said i would go with A, or D on number one
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Many people believe that vitamins and minerals are essentially the same type of nutrient but they are not: one is an organic molecule and the other is an inorganic molecule. Which correctly identifies vitamins and minerals, and explains the difference between these types of compounds? Vitamins are organic and minerals are inorganic. Organic compounds are found in the soil and inorganic compounds are made by living things. Minerals are organic and vitamins are inorganic. Organic compounds come from living things and inorganic compounds are found in the soil. Vitamins are organic and minerals are inorganic. Organic compounds come from living things and inorganic compounds are found in the soil. Minerals are organic and vitamins are inorganic. Organic compounds are found in the soil and inorganic compounds are made by living things.
Answer:
The correct statements are listed below.
Explanation:
Vitamins are organic and minerals are inorganic.
Organic compounds comes from living things.Vitamins generally exist as organic compounds for example all the vitamin such as vitamin A, Thiamine,riboflavin,biotin,pyridoxin,vitamin c,vitamin E, vitamin K exist as organic compounds.
On the other hand minerals are found in inorganic form for example nitrogen is found as nitrate and nitrite,phosphorus is found as phosphate group,phosphoric acid.
Answer: C) Vitamins are organic and minerals are inorganic. Organic compounds come from living things and inorganic compounds are found in the soil. See provided image.
Explanation:
sound waves travel through gas liquid and solids A) True B) False
Answer:
True.
Explanation:
Sound is a form of Energy that produces a sensation of hearing in our ears.Sound is produced as a result of vibration produced in a body.Sound energy is transmitted from one place o other place by wave motion.When a body vibrates, the particles of medium surrounding it starts vibrating about their mean position.During vibration, they collide with the surrounding particle and transfer some energy to them.They then start vibrating faster and transferring energy to the next surrounding particle. This process continues till the vibration reaches a person ear.Thus, particles are an important factor in propagation of sound.Sound cannot travel in vacuum.It requires a medium to travel from one point to another.A sound can travel in all medium, solids, liquids and gases as all of these have particles.The speed of sound is highest in solids and lowest in gases as the inter molecular space is largest in gases and smallest in solids.Explain why nitrogen and carbon dioxide dissolve in the water from the atmosphere , but not phosphate.
This is because the boiling point of phosphates is too high hence they do not naturally turn into a gaseous form in natural temperatures on the earth's surface. The boiling point of phosphorus is approximately 280 degrees centigrade. The boiling point of nitrogen is approximate – 195.8 degrees centigrade while that of -78.94 degrees centigrade
Gases can dissolve in an out of water due to (also determined by their partial pressures) while solids and liquids remain dissolved in the water unless temperatures get high enough to reach their boiling point and turn them into a gaseous phase of matter.
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How are mitosis and binary fission similar
Answer:
The similarity they have is that they both produce two identical cells to each other and to the mother cell, but the mechanism is totally different as binary fission takes place in prokaryotic cells while mitosis takes place in eukaryotic ones.
using the food web, describe two complete food chains that include a ptoducer, consumer, and descomposer.
Answer:
A caterpillar eats from a tree, and then is eaten by a bird. The bird is eaten by an owl. A rabbit eats grass and is eaten by a fox. A flea eats off of the fox. A caterpillar eats grass and is then eaten by a mouse. The mouse dies and is decomposed by mushrooms. A caterpillar eats grass and is then eaten by a mouse. A hawk eats the mouse, then dies and is decomposed by mushrooms.
Explanation:
We have two examples of food trophic web, the first is: The plant is eaten by the mouse, the snake, which feeds on the mouse, The eagle, which feeds on the snake. The second example is the phytoplankton serve as food for the krill, which serves as food for the penguin, and the seal feeds on the penguin. To understand more about levels .....
Food chainFood chain is the sequence of feeding between living beings, in which some feed on others, ensuring their survival. From the beings that produce their own food and generate energy, a sequence (chain) develops in which one living being is consumed by another. The last animal in this chain, after its death, will serve as food for the decomposing organisms, ending the cycle.
Each part of this chain is called a trophic level (feeding level). Every time a living being eats, the energy of the food has a part used in the form of calories and another part transferred to its consumer. The original energy is lost at the time of each transfer.
Two examples of food webThe plant occupies the first trophic level, that of producers (autotrophs). Next, we can see a mouse, which feeds on the plant, occupying the second trophic level, the primary consumer (herbivore). The snake, which feeds on the mouse, occupies the third trophic level, that of secondary consumer (carnivore). The eagle, which feeds on the snake, occupies the fourth trophic level, that of tertiary consumer (carnivore). Decomposers are generally not represented in chains, as they act at different trophic levels.Phytoplankton, which is made up of photosynthetic organisms, is the producer. Phytoplankton serve as food for krill, which therefore behaves as a primary consumer. Krill serves as food for the penguin, which can be classified as a secondary consumer. Finally, the seal feeds on the penguin, behaving like a tertiary consumer.With this information, we can conclude the trophic levels of these animals and visualize the importance of the food web for the conservation of the ecosystem.
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Definition- Hydrocarbon-containing natural resources burned for energy.
Explanation:
PETROLEUM is the natural resource that is burned for energy. It is considered a fossil fuel.
Hydrocarbons are organic compounds made predominantly of carbon and hydrogen, and are primarily contained within fossil fuels, such as methane, propane, and butane. When these hydrocarbons are burned, they release the energy stored within their many covalent bonds. However these resources are non-renewable and their use can lead to environmental and sustainability issues.
Explanation:The hydrocarbon-containing natural resources being referred to in your question are organic compounds composed predominantly of carbon and hydrogen atoms and are primarily found in fossil fuels. Examples include methane, propane, and butane, all of which are used as sources of energy in our daily lives. These hydrocarbons contain many covalent bonds that store a considerable amount of energy. When these molecules are burned, or oxidized, they release this energy.
Moreover, these natural resources are derivative of alkanes which burn in the presence of oxygen, this event is an extremely exothermic oxidation-reduction reaction that yields carbon dioxide and water. This makes alkanes excellent fuels. Fossil fuels such as gasoline are a blend of alkanes having five to nine carbon atoms. The crude oil, which is a complex mixture, forms the main source of these liquid alkane fuels which are separated by fractional distillation. The boiling points of the components of the mixture enable the execution of fractional distillation.
It's important to note, however, that these resources are not renewable. This means they can be depleted over time and their excessive consumption can raise environmental and sustainability issues.
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Which of the following are good conductors under normal conditions?
Check all that apply.
A. plastic
B. a penny
C. gold
D. air
E. water
F. ceramic
Answer:
Explanation:
f e d b
PLZ HELP ASAP
For each of the organisms listed below state the type of population distribution and
population density of their habitat. Give a reason for each answer.
I will make you the brainiest
Tigers are solitary Tigers and bison represent two distinct approaches to social organization and habitat utilization in the animal kingdom, reflecting their specific ecological adaptations and survival strategies.
Tigers, as solitary animals, inhabit vast territories, often covering hundreds of square kilometers.
This solitary nature is primarily driven by their need for space to find food and mates.
Tigers are carnivores and require large territories to hunt and maintain a reliable food supply.
By living alone, they minimize competition for resources within their territory.
Additionally, solitary living reduces the risk of inbreeding, as tigers mate with individuals from other areas, contributing to genetic diversity.
They need a lot of space to find food and mates. Bison live in herds for protection and to stay warm in the winter.
Tigers and bison represent two distinct approaches to social organization and habitat utilization in the animal kingdom, reflecting their specific ecological adaptations and survival strategies.
Tigers, as solitary animals, inhabit vast territories, often covering hundreds of square kilometers.
This solitary nature is primarily driven by their need for space to find food and mates.
Tigers are carnivores and require large territories to hunt and maintain a reliable food supply.
By living alone, they minimize competition for resources within their territory.
In contrast, bison are highly social animals, forming large herds. This behavior offers several advantages, including protection from predators and improved thermoregulation.
In harsh winter conditions, huddling together in a bison herd helps them conserve body heat.
The collective awareness of the herd also provides better defense against potential threats, as more eyes and ears are available to detect predators.
These distinct social behaviors and habitat preferences of tigers and bison exemplify how different species have evolved to adapt to their unique environments and ecological niches.
Tigers rely on solitude to secure their food and genetic diversity, while bison depend on herd living for safety and warmth in their challenging habitats.
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Population density is the number of individuals within a specific area, while distribution refers to how those individuals are spatially arranged. Uniform distribution often results from competition for resources, whereas clumped distribution aligns with patchy resource availability. Calculating population density enables comparison between different organisms in a given area.
Explanation:Population density refers to the number of individuals per unit area or volume in a habitat. A uniform distribution of organisms within an area is often due to competition for scarce resources, resulting in evenly spaced individuals. Conversely, a random distribution may occur where resources are abundant and environmental conditions are stable. For example, two populations may have the same population density, but one may be uniformly distributed while the other is randomly distributed. This discrepancy may arise due to differences in social behavior, resource distribution, or environmental factors.
A population with a clumped distribution typically arises in environments where resources are patchy, leading to groups of organisms clustered around these resource-rich areas. This form of distribution is the most common in nature due to the varying nature of resource availability.
To calculate which of the given populations (insects or plants) has a greater density, we can divide the total number of individuals by the area they occupy. The density of insects is 820 insects/1.2 acres, whereas the density of flowering plants is 560 plants/0.2 acres. By comparing the densities, we can determine which population has a higher density and why.
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Cellular respiration is the name given to a series of biochemical reactions?
Answer:
Uses glucose to make ATP
Explanation:
Glucose molecules are broken down in the presence of oxygen in tissue cells to release energy, water and carbon dioxide. Some of the energy produced is used to form a chemical compound known as adenosine triphosphate(ATP). In the formation of ATP, the energy causes a reaction in which a two-phosphate molecule ADP combines with an inorganic phosphate molecule to form ATP which is a high energy yielding molecule.
Cellular respiration is a series of metabolic processes in cells that convert biochemical energy from nutrients into ATP, with waste products being expelled. It comprises three main steps: glycolysis, the Krebs cycle, and the electron transport chain.
Explanation:Cellular respiration refers to the set of metabolic reactions and processes that occur in organisms' cells. Its purpose is to convert biochemical energy from nutrients into adenosine triphosphate (ATP) and then expel waste products. There are three key steps to cellular respiration:
Glycolysis: the breakdown of glucose into pyruvate, resulting in a net gain of two ATP molecules.The Krebs cycle, also known as the citric acid cycle: Further breakdown of pyruvate, releasing carbon dioxide and transferring high energy electrons to carrier molecules, NADH and FADH2.Electron Transport Chain: This is where the majority of ATP is generated. Using the high-energy electrons carried by NADH and FADH2, it pushes hydrogen ions across a membrane, building up a potential energy difference that is then used to make ATP.Learn more about Cellular Respiration here:https://brainly.com/question/32872970
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How did Gregor Mendel's research affect the science of his time?
A) His research was not appreciated by the scientific community until after he died.
b )His results could predict heritability in plants but not animals.
c) His research included detailed studies on polygenic traits.
d) His focus on pea plants showed that pea plants have very few heritable traits.
Answer:
The correct option is A. His research was not appreciated by the scientific community until after he died.
Explanation:
Gregor Mendel was an Austrian monk who laid the foundation of genetics. Mendel studies seven traits from the pea plants and formed the law of segregation and law of independent assortment.
The work of Mendel was not appreciated until his death. In the 20th century, his work was eventually rediscovered and appreciated.
However, Mendel's study did not include any explanations for polygenic traits. His results could predict heritability in both plants and animals.
Excluding Alaska and Hawaii, which soil type occupies the largest area on the map?
A) Prairie Soils
B) Forest Soils
C) Tundra Soils
D) Mountain Soils
Answer:
Prairie Soils
Explanation:
The vast temperate grasslands have soils that are rich, and deep. Because of this, prairie soils are the breadbasket of the world! They produce a majority of the wheat, corn, and soybean production in the US and the world. This is responsible for cooking oils, dog foods, work gloves, diapers, cat litter, soy-milk, and a whole host of products that we use every day.
What did lise meitner and Otto Frisch believe happens to nuclei that Otto hahn and fritz strassman bombarded with neutrons?
Answer:
Otto Hann and Fritz Strassman was chemist. Following Enrico Fermi work, they begin to bombard uranium and also other element with the neutrons and find out series of decay products.
Explanation:
Chemical analysis was done by Hann and Lise Meitner explained the physics. After Lise Meitner was forced to flee from Nazis, Hann and Strassman continue bombarding; they found isotopes of barium among the decay products but couldn’t explain it. Following the Hann’s paper, Meitner and her nephew discovered that the split of neutrons was because of high electric repulsive energy which when put to Einstein formula [tex]\mathrm{E}=\mathrm{mc}^{2}[/tex] work out and this lead to discovery of fission reaction.Answer:
C ALBERT
Explanation:
2. Dominant trait: cleft chin (C) Mother’s gametes: Cc
Recessive trait: lacks cleft chin (c) Father’s gametes: cc
Offspring Genotypes:
Offspring Phenotypes:
% chance child will have cleft chin:
3. Dominant trait: flat feet (A) Mother’s gametes: Heterozygous
Recessive trait: arched feet (a) Father’s gametes: Heterozygous
% chance child will have arched feet:
4. Dominant trait: Brown hair (B) Mother’s gametes: Homozygous recessive
Recessive trait: Blonde hair (b) Father’s gametes: Heterozygous
% chance child will have blonde hair:
5. Dominant trait: farsightedness (F) Mother’s gametes: Heterozygous
Recessive trait: normal vision (f) Father’s gametes: Heterozygous
% chance child will have normal vision:
.2. Offspring Genotypes will be Cc or cc.
Offspring phenotypes : Cleft chin or no cleft chin.
% chance child will have cleft chin: 50%
3. % chance child will have arched feet: 25%
4. % chance child will have blonde hair: 50%
5. % chance child will have normal vision: 25%
Explanation:
CASE 1 :
Dominant trait: cleft chin (C)
Recessive trait: lacks cleft chin (c)
Father’s gametes: cc
Mother’s gametes: Cc
There are two possible combination of Gametes ,
C fom mother and c from father= Cc
c from mother and c from father = cc
Gametes of Cc Parents= [tex]\frac{1}{2}C + \frac{1}{2} c[/tex]........(i)
Gametes of cc parents = [tex]\frac{1}{2}c + \frac{1}{2}c[/tex] .........(ii)
Combining (i) and (ii) we get,
[tex]\frac{1}{2} Cc + \frac{1}{2} cc[/tex]
There fore offspring Genotypes will be Cc or cc
Offspring phenotypes :
Genotype Cc then phenotype= Cleft chin
Genotype cc then phenotype = Lacks cleft chin.
percentage chance child will have cleft chin =[tex]\frac{0.5}{1}[/tex] ×100
Therefore the chance is 50%.
CASE 2 :
Dominant trait: flat feet (A)
Recessive trait: arched feet (a)
Mother’s gametes: Heterozygous (Aa)
Father’s gametes: Heterozygous (Aa)
There are four possible combination of genotypes are =AA , Aa, Aa and aa
i.e. A from mother, A from father= AA
A from mother, a from father =Aa
a from mother, A from Father = Aa
a from mother, a from father = aa
Gametes of Aa parent =[tex]\frac{1}{2} A + \frac{1}{2} a[/tex]
Gametes of other Aa parent = [tex]\frac{1}{2} A + \frac{1}{2} a[/tex]
..................................................................................
[tex]\frac{1}{4} AA + \frac{1}{4} Aa[/tex]
+ [tex]\frac{1}{4} Aa[/tex] +[tex]\frac{1}{4} aa[/tex]
..........................................................................................
[tex]\frac{1}{4}AA + \frac{1}{2}Aa +\frac{1}{4} aa[/tex]
Offspring Genotypes will be: AA or Aa or aa
Offsprings phenotype will be:
Genotype AA then phenotype will be Flat feet
Genotype Aa then phenotype will be flat feet
Genotype aa then Phenotype will be arched feet.
Percentage chance child will have arched feet = [tex]\frac{0.25}{1}[/tex] × 100 = 25%
CASE 3:
Dominant trait: Brown hair (B)
Recessive trait: Blonde hair (b)
Mother’s gametes: Homozygous recessive (bb)
Father’s gametes: Heterozygous (Bb)
This case is very similar to the case 1 as one parent is homozygous recessive and other parent is heterozygous.
Resulting in half Bb and halve bb combination.
Genotypes will be Bb or bb
Phenotypes will be :
Genotype Bb then phenotype Brown hair
Phenotype bb then Phenotype bb.
% chance child will have blonde hair: 50%
CASE 4:
Dominant trait: farsightedness (F)
Recessive trait: normal vision (f)
Mother’s gametes: Heterozygous (Ff)
Father’s gametes: Heterozygous (Ff)
This Case is similar to case 2
it will result in one-fourth FF , half Ff and one-fouth ff combination.
Therefore Genotypes will be: FF, Ff and ff
Phenotypes:
Genotype FF then phenotype farsightedness
Genotype Ff then phenotype farsightedness
Genotype ff then phenotype normal vision.
% chance child will have normal vision: 25%
A stream’s velocity is _______ at the bottom and edges. A stream’s invisible _______ load represents (on average) about 15% of the mass of material transported. A stream with many rapids and waterfalls is likely a/an _______ stream. In a meander, water flowing around the outside of a curve flows _______ than water flowing around the inside of the curve. An oxbow lake can form near a/an _______ stream. A/An _______ is likely to form where a stream deposits sediment as it enters another body of water.
Answer:
1.slowest
2. dissolved
3. youthful
4. faster
5. meandered
6. delta
Explanation:
A stream’s velocity is slowest at the bottom and edges. A stream’s invisible dissolved load represents (on average) about 15% of the mass of material transported. A stream with many rapids and waterfalls is likely a/an youthful stream. In a meander, water flowing around the outside of a curve flows faster than water flowing around the inside of the curve. An oxbow lake can form near a/an meandered stream. A delta is likely to form where a stream deposits sediment as it enters another body of water.
What is wavelength?Wavelength is the distance between two identical or similar positions it means that it is the distance between crests or trough in the adjacent cycle of the waveform.
Wavelength is denoted by (lambda).
It is measured in meter, or centimeter, or millimeters.
Mathematical
Wavelength is equal to velocity divided by frequency,
So,
Wavelength (lambda) = Velocity/frequency.
Velocity is in meter per second.
Frequency is in 1/second.
Projectile motion is a type of motion in which a object is thrown from the surface earth at some angle it will take projectile projection .
Therefore, A stream’s velocity is slowest at the bottom and edges. A stream’s invisible dissolved load represents (on average) about 15% of the mass of material transported. A stream with many rapids and waterfalls is likely a/an youthful stream. In a meander, water flowing around the outside of a curve flows faster than water flowing around the inside of the curve. An oxbow lake can form near a/an meandered stream. A delta is likely to form where a stream deposits sediment as it enters another body of water.
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_The roof of artificial greenbouse
is made slanted, why?
Answer:
An artificial greenhouse can be described as a greenhouse made by humans.
The roof of a greenhouse is made slanted due to the following reasons:
So that maximum solar energy can be received by the plants. It is slanted so that rainwater or snowflakes can shed off easily whereas a flat roof would hold the rain and snowflakes.The long ends will be able to receive the morning sunshine and the afternoon sunshine in this way.
Process by which wastes are converted into new products and materials
Answer:
Recycling is the process of converting waste materials into new materials and objects. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions.
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Recycling is defined as the process of converting waste materials into new materials and goods where energy recovery from waste materials is often included in this concept.
What is Recycling?Recycling is defined as the process of converting waste materials into new materials and goods that involve the recovery of energy from waste materials. The recyclability of a material depends on its ability to recover the properties present in its original state.
There are three types of recycling which are:
Mechanical Recycling.Energy Recycling.Chemical Recycling.The basic steps in recycling are the collection of waste materials, their processing or manufacture into new products, and the purchase of those products which can then be recycled.
Thus, Recycling is defined as the process of converting waste materials into new materials and goods where energy recovery from waste materials is often included in this concept.
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