Answer:
Random movement of molecules is not fast enough to disperse through the larger eukaryotic cell volume,
Explanation:
Eukaryotic clels are much bigger than prokaryotic cells. The latter may be 0.5 um while the former may be 100 um (which is more than 10X in comparative size). Prokaryotic cells, therefore, have a larger surface area to volume ration that suits them to use diffusion to eliminate waste and take up nutrients. However eukaryotic cells cannot adopt this mechanism due to their smaller surface area-to-volume ratio which would cause them to accumulate waste to toxicity levels. Eukaryotic cells, therefore, use additional vesicle transport to take up nutrient and eliminate waste in bulk.
Which describe what will mostly happen to the trout population
Answer:
Trout is a very common freshwater fish. The lifespan is very small.
Explanation:
The trout population is affected by the climate change and also the pollution present in the freshwater. These fish variety travel for across to lay eggs. And after laying eggs they just die. The climate change and the the fishing of this variety has negatively affected the population. There are lot of varieties of trout fish like rainbow albino etc.
The rise in temperature and flood in a river is a major factor which effects the population of this fish. in USA when the temperature rises it result in flood condition in the river which affects the lifestyle of this fish.
Which of the following statements describes a feature shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions?
A. They have rigid, non-fluid membranes.
B. They have highly folded membranes.
C. They have membranes composed of many carbohydrates.
D. They have double membranes, with one membrane enclosed within the other.
Answer:
The answer is B. They have highly folded membranes.
Explanation:
A highly folded structure is advantageous for microscopic organelles such as the mitochondria and the endoplasmic reticulum. These organelles need to produce high amounts of ATP and proteins in a day, respectively.
For the endoplasmic reticulum, with ribosomes attached, it is responsible for the manufacturing, packaging, and transport of specific proteins. Same goes for the mitochondria, which is responsible for energy production and respiration. These processes are so demanding that in order to be more efficient in being productive, the highly folded membranes provide a wider and better surface area for synthesis of proteins or ATP, despite the size of these organelles.
A feature that is shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions is B. They have highly folded membranes.
It should be noted that a highly folded structure is advantageous for microscopic organelles like the endoplasmic reticulum and the mitochondria.It should be noted that the organelles need to produce high amounts of ATP and proteins. For the endoplasmic reticulum, it manufactures, packages, and transports some specific proteins.The mitochondria is responsible for energy production and respiration. They've to be efficient in carrying out their functions effectively, they have highly folded membranes.In conclusion, the correct option is B
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Many fish and aquatic plants can survive a cold winter because the layer of
ice that forms at the top of the lake insulates the water below and prevents
the lake from freezing solid. What unique property of water contributes to
this effect?
Answer:
Water expands on cooling below 4 degrees Celcius.
Explanation:
This means the water becomes less dense because the same mass of water occupies more volume. This is called the ‘water anomaly’ because other liquids reduce in volume with temperatures. Ice will, therefore, float on very cold water. In cold regions this ice sheet formation in lakes and oceans is significant in insulating the waters below from losing more heat. Consequently, the waters below the ice sheet remain liquid maintaining the aquatic life below the ice.
How has the Doppler effect and the redshift of stars and galaxies indicated that the universe is expanding?
A: The Doppler effect says that the higher the frequency of waves, the further an object is moving from the observer. The color red has the shortest wavelength.
B: The Doppler effect says that the lower the frequency of waves, the faster an object is moving toward the observer. The color red has the longest wavelength.
C: The Doppler effect says that the frequency of sound or light waves is affected by whether the emitting object is moving toward or away from the observer. The color red has the longest wavelength.
D: The Doppler effect says that the frequency of sound or light waves determines the color of an object. The color red has the longest wavelength.
Answer:
Option C
Explanation:
As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.
Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.
Thus, the higher the wavelength, the lower will be the frequency of an object and hence it moves at a faster speed away from the observer and hence the universe is said to be expanding.
Thus, option C is correct.
SOMEONE PLEASE HELP ME! I NEED TO FINISH THIS IN LESS THAN 5 MINUTES! THANK YOU!
1. 2nd picture(RBC)
2.3rd picture(relay neuron)
3.1st picture( plant epidermal cells)
4. 4th picture( chloroplasts)
1.Animal cells that bend and squeeze easily through narrow spaces: White blood cells
2.Animal cells that relay information to other cells: Nerve cells
3.Plant root cells that absorb water and minerals from the soil: Root hair cell.
4.Plant cells that make food: Palisade mesophyll cell
Functions of Specialized Cells in the Image
1. Animal cells that bend and squeeze easily through narrow spaces: These are likely white blood cells, which are part of the immune system and help to protect the body from infection.
White blood cells are able to change their shape and squeeze through narrow spaces in order to reach areas of the body where infection is present.
2. Animal cells that relay information to other cells: These are likely neurons, which are nerve cells that transmit electrical signals throughout the body.
Neurons have long extensions called axons and dendrites, which allow them to connect to other neurons and muscle cells.
3. Plant root cells that absorb water and minerals from the soil: These are likely root hairs, which are thin projections that extend from the roots of plants.
Root hairs are specialized for absorbing water and minerals from the soil.
4. Plant cells that make food: These are likely palisade mesophyll cells, which are found in the leaves of plants. Palisade mesophyll cells are packed with chloroplasts, which are organelles that contain chlorophyll, the green pigment that allows plants to photosynthesize.
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce food.
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How can you describe the environment in which an organism lives?
The environment in which an organism lives, also known as its habitat, involves several key factors such as the availability of resources, geographical location, and physical characteristics of the environment. The species' specific adaptations to the conditions of their habitat also form part of the environment's description.
Explanation:The environment in which an organism lives can be described by several key factors. These include competition for limited resources, such as organic material, sunlight, and mineral nutrients, which are essential for life processes and contribute to the physical structures of organisms. The physical and geographic aspects of an environment like latitude, rainfall, topography, and species availability also play crucial roles.
For instance, an ecosystem can range in size from a small tide pool to a large rainforest, and each of these ecosystems provides a unique habitat that supports different types of organisms. Various factors, such as climate, elevation, and geology, also contribute to the suitability of a habitat for an organism. Animals and plants have developed specific adaptations to enable them to thrive in their specific habitats.
In general, ecosystems can be categorized into freshwater, ocean water, and terrestrial environments. Each of these broad categories can be further broken down into individual ecosystem types based on the organisms present and the environmental habitat.
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Which gas is found in high percentages in the atmosphere in all of the gas
giants?
O A. Nitrogen
O
B. Hydrogen
O
O
C. Carbon monoxide
O
O
D. Oxygen
O
E. Carbon dioxide
///Apex\\\
Answer:Nitrogen is found in a highest amount in Atmosphere.It is found in 78%
Explanation:
Answer:
Hydrogen
Explanation:
If one Snapdragon flower has red petals and another has white petals, they most likely have:
Answer:
A. Different alleles of the same gene
Explanation:
Think about it, if one parent produces red petals and the other parent produces white petals - then both parents give off different alleles for that one gene - to become identical.
[CM.06]The picture below shows four locations on the map of Australia.
Four locations (A, B, C, and D) are shown on a map of Australia. Point A is located inland on the western portion of the island, Point B is located inland in the northern portion of the island, Point C is located inland on the western portion of the island, and Point D is located on the southern portion of the island along the coast.
Which of these locations is most likely to experience moderate climate throughout the year?
Location A
Location B
Location C
Location D
Answer:
A
Explanation:
What is cardio respiratory endurance
Which state of matter does this model represent?
a) solid
b) liquid
c) gas
d) plasma
Answer:
gas be the molecules are tightly held together
how does the molecular structure of base pairs ensure that two strands of DNA are complementary
Answer: The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. ... The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted.
Explanation:
The base pairs in DNA (Adenine-Thymine and Guanine-Cytosine) bond using specific hydrogen bonding patterns, which ensure the strands are complementary and thus allow reliable replication and protein synthesis.
Explanation:The molecular structure of DNA is based on the principle of base pairing, which ensures the two strands are complementary. DNA uses four nitrogenous bases: adenine, guanine, cytosine, and thymine. Adenine (A) always pairs with Thymine (T), and Guanine (G) with Cytosine (C). This pairing is due to the specific hydrogen bonding between the bases. With Adenine-Thymine forming double hydrogen bonds and Guanine-Cytosine forming triple hydrogen bonds. This set pattern of base pairing ensures the two strands are complementary, meaning when the sequence of one strand is known, the sequence of the other can be determined. This principle is fundamental to DNA replication and protein synthesis.
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What skills or attributes make you a good environmental scientist
Answer:
Written and oral communication skills.
Teamwork.
Problem solving.
An investigative mind.
Observation skills and critical thinking.
Innovative thinking.
Good with statistics.
Commercial awareness.
Final answer:
Skills such as critical thinking, scientific knowledge, and communication abilities make a good environmental scientist.
Explanation:
There are several skills and attributes that make a good environmental scientist. One important skill is critical thinking and problem-solving, which are necessary for analyzing complex environmental issues and developing effective solutions. Another important attribute is a strong understanding of scientific principles and research methodologies, as this knowledge is essential for conducting accurate and reliable environmental research. Additionally, good communication skills are crucial for effectively conveying scientific findings and collaborating with others in the field.
For example, an environmental scientist may use critical thinking skills to analyze the causes and impacts of deforestation, and then develop strategies to mitigate its effects. They may also use scientific principles to conduct experiments and gather data about air pollution, and then communicate their findings to policy-makers and the public to advocate for change.
In conclusion, a good environmental scientist should possess skills such as critical thinking, scientific knowledge, and communication abilities.
Sugars do not function only in the production and storage of cellular energy. They also can be used to make mechanical supports. Both plant and fungal cells gain structural support from cell walls composed of carbohydrate polymers. Compare the chemical component(s) of these cell walls.
A) Like plant cells, fungal cells possess a clews composed of cellulose.
B) Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.
C) Plant cell walls are composed of starch while fungal cell walls are composed of cellulose.
D) Plant cell walls are composed of cellulose while fungal cell walls are composed of a mixture of cellulose, starch and chitin.
Answer: B) Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.
Explanation: Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin./b> Both compounds are carbohydrate polymers, but are composed of different monomers. The cellulose of plant cell walls is a polysaccharide of glucose. The chitin of insect exoskeletons and fungal cell walls, is also a polysaccharide: a linear polymer of a sugar derivative called N-acetylglucosamine.
Plant cell walls are composed primarily of a carbohydrate polymer called cellulose, providing structural support. Conversely, fungal cell walls are made primarily of a unique carbohydrate polymer called chitin. Despite both providing structural support, they are composed of different carbohydrate polymers.
Explanation:When comparing the chemical components of the cell walls of plants and fungi, B) is the correct option. Plant cell walls are primarily composed of a carbohydrate polymer called cellulose. This material is tough and fibrous, providing plants with the necessary structural support and rigidity.
On the other hand, fungal cell walls are primarily composed of a unique carbohydrate polymer called chitin. While it similarly provides structural support, chitin is a different substance entirely with its own unique properties. Therefore, despite both serving a similar purpose, plant and fungal cell walls are composed of different carbohydrate polymers: cellulose and chitin respectively.
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Is a fire abiotic or biotic
how do costal and interior plains differ? how are they similar?
Answer:
The correct answer is "Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land".
Explanation:
A plain is defined as large areas of flat land with the presence of few vegetation. Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land, which contrasts with other landforms such as mountains and hills.
Where is the least amount of energy transferred in a food web
Answer:The tropic level
Explanation: In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy. The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it.
Answer:
the producers
Explanation:
because their tissues are less dense :)
All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.
Answer: C
Explanation:
All living organisms contain carbon atoms.Carbon atoms can bond with many other kinds of atoms to form very stable molecules. This is an important characteristic of carbon therefore it is present in many living organisms. It is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms .This is due to the fact that the carbon atom is just the right size to fit in snuggly as part of very large molecules.
The statement ''Carbon atoms can bond with many other kinds of atoms to form very stable molecules'' is an important characteristic of carbon.
Answer: Option C
Explanation:
Carbon is found in all the living organisms right from the extinct dinosaurs to the existing living organisms. It is the most abundantly available material in the whole world. Thus it helps us to identify the living period of fossils by the carbon deposited in it through a process called carbon dating.
Living things get carbon from the carbon dioxide dissolved in the atmosphere. Carbon has the tendency to bond with many other kinds of atoms to form a very stable molecule like graphite, diamond etc. Carbon is the base of the entire bio-chemistry.
Please help me fill in all blanks starting from the box that said about the world around them
Answer:
In this order:
observations
ask questions
hypotheses
controlled experiments
control group
an independent variable
a dependent variable
data
what is the next step of the scientific method
Answer:
Next step? Since you didn't specify here's all of them:
Explanation:
Question/ProblemHypothesisResearchExperimentDataConclusionAnalysis Communicate ResultsWhat is the baby learning through play in the following scenario? Cameron is seven months old and is fascinated by her
rattle. She shakes it, stares at it, and giggles when it makes noise.
coordinated movement
noise recognition
problem solving
cause and effect
Answer:
noise recognition
Explanation:
Answer:
noise recognition
Explanation:
correct answer on edge.
Which choice has eukaryotic animal cells?
A: liver
D: oak
C: virus
D:Lactobacillus
Answer:
A.) Liver has Eukaryotic Cells.
Explanation:
Trust me.
As an animal cell, the liver lacks the cell wall, chloroplast, and big vacuole that are often seen in plant cells. Thus, option B is correct.
What are the eukaryotic animal cells?Animals are all eukaryotic cells. Animal cells differ from those of other eukaryotes, most notably plants, in that they have smaller vacuoles and don't have cell walls or chloroplasts.
Animal cells can change into a variety of shapes because they don't have a cell wall.
Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus. Eukaryotic creatures come in a great variety, including most algae, all animals, plants, fungus, and protists.
Therefore, liver is a eukaryotic animal organ.
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Which type of proteins exhibit only primary and secondary structure?
Answer:
two bonds that can rotate in space between each amino acid in the backbone of the primary sequence. These restricted movements, when repeated through several amino acids in a chain, yield the two main types of protein secondary structure: the alpha (α) helix and the beta (β) strand.
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Explanation:
what is the difference between plant and animal cells ? a .an animal cell can produce energy ,because it has mitochondria . b. a plant cell has a well defined shape, because it has a cell wall . c . a plant cell can store genetic information , because it has a nucleas . d. molucules can only pass into an animal cell because it has a cell membrane . which one ?
Answer: plant cell makes its own food using energy from the sun however animals cells help make their own baby and have a cell wall
Which specialized cells are responsible for transmitting messages throughout the body?
neurons
epithelial cells
blood cells
muscle cells
Answer: well by process of elimination we can get are answer.
1 muscle cells, what is there function locomotion of your skeletal system and in turn your body.
2 blood cells, can clot blood due to platelets within/making up blood. Plasma carries nutrients excluding oxygen to cells. Red blood cells carry that good old Oxygen necessary for ATP production via the electron transport chain. (Don’t be confused by this ATP can be made in other process like the Krebs cycle, glycolysis, ETC) Finally white blood cells include lymphocytes, granulocytes, monocytes, and macrophages.
3 epithelial cells, epithelial cells line the outside of your body and certain things inside your body there main function is pathogen and or virus protection.
So the only possible answer is nerve cells or neurons.
Answer:
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THE ANSWER IS A
Explanation:
Which topic in a biology textbook is directly related to physics
Answer: osmosis and cellular transport
Explanation: this is 100% just answerd it and got it right
Question 5
Which structure would not be found in both prokaryotic and eukaryotic cells?
Cytosol
Mitochondria
Ribosomes
Plasma membrane
Question 6
Prokaryotic and eukaryotic cells have several differences. Which statement below is not one of th
Mitochondria would not be found in both prokaryotic and eukaryotic cells? (option B)
What is mitochondria?Mitochondria are organelles found in the cells of most eukaryotic organisms. They are often referred to as the "powerhouses of the cell" because they are responsible for generating most of the cell's ATP, which is the cell's main source of energy
Mitochondria are only found in eukaryotic cells, not prokaryotic cells. Prokaryotic cells are the simpler type of cell, and they do not have the same level of complexity as eukaryotic cells.
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John, a 19 year old boy, wanted to figure out why he wasn't sleeping well at night. He normally and heads to bed by 11 pm and wakes up about 6 am. He works during the day, exercises after work for 1 hour, eats dinner, watches television, checks his phone for messages, and drinks a Pepsi at about 10 pm. What can you infer is keeping John awake at night.
Answer:
The Pepsi he drinks at 10 pm
Explanation:
Pepsi is a caffeinated drink that has caffeine in it. Caffeine is a stimulant which means it keeps the body awake and alert. Caffeine works by mimicking adenosine. Adenosine is produced by neuron cells and when it binds to its own receptors (autocrine signaling) it triggers the neurons cells to continue firing. As the adenosine levels fall as the day progresses, the brain is signaled that it is time rest. Adenosine levels are at the lowest when its almost bedtime. However, when Jon takes Pepsi, the caffeine in it bind to the adenosine receptors and make the brain neurons to keep ‘firing’.
2 Points
How could an error during transcription affect the protein that is produced?
O
A. The protein would become too specialized.
O
B. The protein would have the wrong shape.
O
c. The protein would become RNA polymerase.
) D. The protein would be made of the wrong nucleic acids.
SUBMIT
Answer:
The error during transcription would affect the production of mRNA.
Explanation:
Answer:The protein would be made of wrong nuclei acids.
Explanation:
*Transcription :This is the synthesis of RNA under the direction of DNA*.
When there is a mutation in the RNA transcript formed, it is known as *error in transcription*and the protein produced due to error in transcription wI'll be made of wrong nucleic acids(RNA or DNA) .
Therefore,when there is an error during transcription, the protein produced would be made of wrong nucleic acids.
1. Given the distribution of charges shown in this
water molecule, why is it called "polar"?
Type your answer here.
Answer:
A polar molecule simply means the charges are not exactly even throughout the molecule. Some parts are slightly negative (outside the oxygen), and some parts are slightly positive (outside the hydrogen atoms). Water is polar because the highly electronegative oxygen atom attracts electrons to it, making the region around the oxygen more negative than the areas around the two hydrogen atoms. This concept is important to understand how water bonds.
A water molecule is characterized as 'polar' due to the unequal distribution of charges. The oxygen atom attracts more electrons than the hydrogen atoms, resulting in a molecule with distinct positive and negative ends.
Explanation:A water molecule is called 'polar' due to the uneven distribution of electrical charges across the molecule. In a water molecule, oxygen is more electronegative than hydrogen. Therefore, the shared electrons tend to spend more time around the oxygen atom, resulting in a partial negative charge. On the other hand, hydrogen atoms exhibit a partial positive charge. This results in a dipole moment, where one side of the molecule is slightly negative and the other is slightly positive. This polar nature of water accounts for many of its unique properties, such as its ability to dissolve many substances (solvent abilities) or its high boiling point compared to molecules of similar size.
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