Answer:
D. atomic mass unit
Explanation:
The atomic mass unit is used for measuring atomic mass.
ANSWER:
The correct option is D: Atomic Mass Unit. Atomic mass is the "mass of an atom" of elements which is measured in amu or atomic mass unit.
EXPLANATION:
The atomic mass is found to be equivalent to the "number of protons and neutrons" in an atom which is also the "mass number" of an atom. The atomic mass is known as atomic weight which is equal to the "weighted average" of "isotopes" of an element.Frank made a table to summarize two characteristics of monocots and dicots. Which labels do X and Y represent? X: scattered bundles Y: multiples of four or five X: scattered bundles Y: multiples of three X: bundles in a ring Y: multiples of four or five X: bundles in a ring Y: multiples of three
Labels X and Y correspond to characteristics of dicots, where X represents vascular bundles arranged in a ring, and Y indicates flower parts in multiples of four or five. The alternative describing monocots would be X: scattered vascular bundles and Y: flower parts in multiples of three.
Explanation:The student has asked which labels represent X and Y when describing the characteristics of monocots and dicots. Based on the information provided, we can infer the following characteristics:
In monocots, the vascular bundles are scattered in the ground tissue, and flower parts are typically in multiples of three. In dicots or eudicots, the vascular bundles are arranged in a ring within the stem, and the flower parts usually come in multiples of four or five.
Therefore, the correct labels for X and Y are:
X: bundles in a ring Y: multiples of four or five
This would describe the characteristics of dicots, also known as eudicots. Meanwhile, the other option with X: scattered bundles and Y: multiples of three, describes monocots.
For the characteristics of monocots and dicots.
X: bundles in a ring
Y: multiples of four or five
Monocots and dicots represent two major groups of flowering plants and exhibit differences in their internal structures, growth patterns, and reproductive organs. These categories are significant in botany for classification and understanding the diversity of plant life.
Monocots typically have vascular bundles scattered throughout their stems, while dicots usually have vascular bundles arranged in a ring.
Additionally, monocots typically have floral parts (such as petals, sepals, stamens) in multiples of three, while dicots typically have floral parts in multiples of four or five.
What are the three general properties of stem cells? Check all that apply.
They are capable of dividing and renewing for long periods of time
They are unspecialized cells.
They remain unspecialized cells.
They can give rise to specialized cells.
Answer:
They are capable of dividing and renewing for long periods of time.
They are unspecialized cells.
They can give rise to specialized cells.
Explanation:
Meiosis is the process in which: A. a cell divides, resulting in 4 daughter cells that are exact copies of the parent. B. somatic cells are created. C. a cell divides, resulting in 2 daughter cells that are exact copies of the parent. D. gametes are created.
Meiosis is the process in which gametes are created. Option D is correct.
Meiosis is a type of cell division that occurs in sexually reproducing organisms. It is responsible for the production of gametes, which are the sex cells that fuse to form a new organism. Meiosis is a two-step process. In the first step, called meiosis I, the cell divides once, resulting in two daughter cells. Each daughter cell has half the number of chromosomes as the parent cell.
In the second step, called meiosis II, the daughter cells divide again, resulting in four daughter cells. Each daughter cell has one-quarter the number of chromosomes as the parent cell. The gametes produced by meiosis are haploid, which means that they have half the number of chromosomes as the parent cell. This is necessary for the fusion of two gametes to produce a diploid cell, which has the full set of chromosomes necessary for a new organism to develop. Option D is correct.
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A pea plant purebred to produce round yellow peas is crossed with a plant purebred to produce wrinkled green peas. Round pea shape is dominant to wrinkled, and yellow pea color is dominant to green. Members of the resulting F1 generation are then crossed to produce an F2 generation, as shown in the figure. On average, what fraction of the F2 generation will display both recessive traits?
Answer:
1 out of 16 or 1/16
Explanation:
Let:
R = Round seed r = wrinkled seed
Y = Yellow seed y = green seed
Starting from the parent generation or the P generation, the genotype of the parents would be:
RRYY x rryy
This is because the cross is between a parents that are "purebred" for specific traits. This means that the parents are homozygous for the traits which in genotype form is represented by either two capital letters or two lower case letters.
Attached is the F1 generation results between a cross between the P generation.
As you can see the genotype of all the offsprings is RrYy.
Now also below is the cross between the F1 generation offsprings.
For recessive traits, it is only expressed when the dominant gene is not in the genotype, or in other words, the genotype is all in small letters. Since we are looking at two traits, you need to look for how many squares out of the total have all lowercase letters.
There is only 1 rryy out of the 16 predictions. So the answer would be 1/16.
Answer:
1 out of 16
Explanation:
What is the only genotype of two parents that would ensure that their offspring could not roll their tongue
Answer:
tt genotype of both parents
Explanation:
Since tongue rolling is genetically dominant trait, this means that even a single copy of the dominant gene (for tongue rolling) is enough for the kids to express the trait. The dominant allele for the gene is indicated by capital T and the recessive allele for non-rolling tongue is indicated by small t.
Since the trait of rolling tongue is dominant in nature, it means that even if one of the parents is heterozygous or homozygoud for T (TT), there will be chances that kids will be tongue rollers. So the only case when any of the kids will never be tongue rollers is one when both parents are homozygous for the allele (tt) that is for non-tongue rolling. Attached genetic picture will help you understand better.
Hope it helps
10. Secondary succession occurs in an area where the community has been
destroyed and the soil has been
A compressed
B destroyed
C preserved
Dremoved
Secondary succession occurs in an area where the community has been destroyed and the soil has been preserved. Thus, the correct option is C.
What is Succession?Succession may be defined as the gradual and continuous replacement of one community by another community over time.
Secondary succession initiates from a site where life existed before. It includes some activities like a forest fire. The rate of secondary succession is faster than that of primary succession.
Therefore, Secondary succession occurs in an area where the community has been destroyed and the soil has been preserved. Thus, the correct option is C.
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What causes metamorphic rocks to form from existing rocks?
The rocks formed by the modification of other preexisting rocks in the interior of the Earth through a process called metamorphism. Through heat, pressure and / or chemically active fluids, the transformation of rocks undergoing structural and mineralogical adjustments takes place. The agents of metamorphism make possible that igneous rocks, sedimentary rocks or other metamorphic rocks, when subjected to pressures ranging from less than 1,000 to up to 16,000 bar, at temperatures ranging from 200 to 1,000 ° C, and / or an active fluid, cause changes in the composition of the same, providing new substances to them. The rock that is generated will depend on the composition and texture of the original rock, the time it was subjected to the effects of the so-called metamorphic process, as well as the agents of the same metamorphism. The precursor of a metamorphic rock is called protolite.
Answer:
can't give uu a answer but i can give u a explanation
Explanation:
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.
Which of the following is an example of an adaptation?
A dog sits when it hears a a command because it’s owner rewards it with food
B. The coloring of a monarch butterfly alerts predators to the fact that the butterfly is poisonous.
C. Birds that live near a highway learn not to fly away every time a car passes
D. Pigeons make their nests near an outdoor restaurant, where food is always available.
Answer:
B
Explanation:
The butterfly formed those adaptions so predators are less likely to eat it
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day, Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. 3. Based on the experiment in the scenario, which visual aid would be most helpful in showing he change in plants’ heights over time?
The most helpful visual aid for showing the change in plants’ heights in the experiment over time would be a line graph. This will allow the student to effectively track each plant's growth and compare the effects of different types of music on plant growth.
Explanation:For this experiment, a line graph would be the most helpful visual aid in showing the change in plants' heights over time. A line graph is ideal for illustrating how a continuous variable (in this case, time) relates to another variable (plant height).
You can plot time (in days or weeks) on the x-axis and plant height on the y-axis. Each plant (A, B, C, and D) would have its own line on the graph, showing how its height changes over time.
This will allow for a clear and visual representation of how different types of music (classical, rock, country, and no music) affect the growth of each plant over the course of the experiment.
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What does this graph tell you about the relationship between temperature and the amount of water vapor that air can hold?
Answer:
As the temperature increases so does the amount of moisture that the air can hold.
Explanation:
The graph shows that at 0 degrees C air can hold about 5 g/m cubed while at 20 it can hold 19 g/m cubed meaning that the amount of moisture increases as temperature increases.
Answer:
heat and cold going up
Explanation:
A Scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell what is unique about the outer layer of the onion cell compared to the skin cell
Answer:
the cells of onion are lined and cubical unlike human cells
Answer:
It contains cellulose.
Explanation:
It is mentioning about the cell wall, is only found in plant cells, and what makes it unique is that it is made of cellulose.
b) How might the role of the mucous membrane in the lung be different from the role of the membrane surrounding a normal blood cell?
Answer:
The mucous membrane in the lung is there to capture and blocks foreign things dusts/dirt from entering the lungs. The membrane in the normal blood cell is to simply take in and out substances/gases like oxygen.
Answer:
The mucous layer in the lung is there to catch and squares unfamiliar things tidies/soil from entering the lungs. The film in the ordinary platelet is to just take in and out substances/gases like oxygen.
Explanation:
who created an accurate model of the structure of DNA.
Answer:
James Watson and Francis Crick
Explanation:
The _______ growth model shows an S-shaped curve because the population is limited by the carrying capacity.
The _______ growth model shows a J-shaped curve because the population isn’t limited by resources.
Zero population growth occurs when the _______ rate is equal to the birth rate.
Once a population reaches the carrying capacity, the population will _______.
The correct words to fill the gaps would be logistic, exponential, death rate, and stabilize respectively.
Population growthThe logistic growth model shows an S-shaped curve because the population is limited by the carrying capacity.
The exponential growth model shows a J-shaped curve because the population isn’t limited by resources.
Zero population growth occurs when the death rate is equal to the birth rate.
Once a population reaches the carrying capacity, the population will stabilize.
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Answer:
1. logistic
2. exponential
3. death
4. decrease
5. c
6. a
7. b
Explanation:
Echolocation is an adaptation bats use to _______. a. hunt insects in flight b. locate flowering plants c. find warm places for hibernation d. all of the above Please select the best answer from the choices provided A B C D
Answer:
d. all of the above
Explanation:
The bats are the only mammals that have managed to perfect flight. They have managed to develop wings, but have started to have a nocturnal life, so in order to be more effective, they have developed their senses like the smell and hearing better, and also developed something new, echolocation. Because the eyesight was not really needed, the bats became almost blind, having very bad eyesight. The echolocation replaced their eyesight though, and it has proven as a very effective adaptation. It is an adaptation that manages to locate objects, food source, be it insects or flowering plants, as well as caves for shelter from predators and cold weather.
About how much moisture can air hold at 20°?
Answer:
At 20 degrees Celsius air can hold about 20g/m cubed.
Explanation:
Looking at the graph you see that when air temp is 20 water vapor is about 20 because that is the point on the graph.
1. describe 2 benefits and 2 drawbacks there might be for animal cells ( including humans) to make their own food through photosynthesis.
Hi
Firstly we will go through the benefits, if animal cells were able to prepare their own food through photosynthesis:
1: No dependency on plants:
We and other animals would not be dependent on plants for any sort of food source and plants would be able to grow and flourish better increasing the overall scenic beauty of our planet which somehow is getting devastated because of human food needs.
2: No requirement of waiting for food in malls to getting the body recharged:
If we were able to prepare own food, we would never be getting tired due to lack of energy, we would always be creating our food side by side during daily activities without the need of spending lots of time and money on food courts.
Drawbacks:
1: No food business:
If we were able to make own food in body, there would be no food businesses in world like restaurants and the world would be a much boring place
2: No diversity of food choices;
If we were able to make own food in body, there would be no food diversity in the world. Each one of us would be using same food for energy. there would be much boring life.
Hope it helps!
The benefits of photosynthesis in an animal cell is we do not have to make food externally, No dependency on plant and animal for food.
The drawback of photosynthesis in the animal cell is photosynthesis produces a comparatively lower amount of energy, and photosynthesis makes cellulose which is difficult to digest by animal cells.
What is photosynthesis?Photosynthesis is a process by which plants make their own food with the help of sunlight, water, and chlorophyll.
Benefits:
If the human cell can make their own food, then there would be no dependency on plants and animals for food.
We do not have to prepare food, this will save a lot of time for humans.
Drawbacks:
The energy produced by photosynthesis is very low, which can not regulate the functions of the animal body.
There are too many functions in the animal body, if cells are indulged in the food-making process, then the process would become very slow.
Thus, these are the benefits and drawbacks of photosynthesis in an animal cell.
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What might happen if someone with type A received a transfusion of type B blood ?
Answer:
they could get very sick
Explanation:
in other words your body treats it as if it is a virus and attacks the new blood
Answer:
Explanation:
The person with blood B will sadly die because the blood doesn't’ Mach.
The circulatory system transports substances such as glucose and oxygen around the body.
(a) Name two other substances that the circulatory system transports around the body.
Answer: blood
Hormones
Amino acids
Electrolytes
Explanation:
The two other components which are transported by a circulatory system are blood and Hormones and Amino acids.
What is circulatory system?Blood arteries in the circulatory system move blood away from and toward the heart. Blood leaves the heart through arteries and returns through veins.
Cells receive oxygen, nutrients, and hormones from the circulatory system, which also removes wastes like carbon dioxide. To keep things moving in the right direction, these roads only go in one direction.
The blood picks up oxygen and releases carbon dioxide at the lungs. The pulmonary veins are then used to transport the blood back to the heart.
Therefore, The two other components which are transported by a circulatory system are blood and Hormones and Amino acids.
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What is the precipitate in the following reaction?
BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)
O A. Na2SO4
O B. Baso
O
c. BaCl2
O D. Naci
Answer:
Precipitates of BaSO4 will be formed.
Explanation:
Most of the sulphates are soluble but barium sulphate is not soluble, it forms precipitates in the mixture. This reaction is of much industrial importance for production of barium sulphate and is used in paints too.
how do yeast cells benefit from fermentation
Answer:
When yeast cells are used in making bread rise, they get energy from the sugar mixed within the bread dough. When oxygen is present, these single celled fungi perform cellular respiration. When there is no oxygen they perform fermentation. By performing fermentation they produce carbon dioxide gas (which causes the bread to rise) and energy storing molecules called ATP. By fermentation they produce more and more ATP. More and more energy.
Explanation:
How do cells in a multicellular organism become specialized? A. Genetic recombination determines which genes are located in each cell within a multicellular organism. B. Each type of cell in a multicellular organism has slightly different DNA, allowing the different types of cells to specialize. C. The genes necessary for different types of cells to function segregate into different cell types in a multicellular organism. D. Gene expression is regulated so that different genes are turned off and on at specific times during development of a multicellular organism.
Answer:
D. Gene expression is regulated so that different genes are turned off and on at specific times during development of a multicellular organism.
Explanation:
In biology, cell differentiation is the process by which living cells "specialize" to perform a given function.
This process results from the differential expression of genes and is an ontogenetic process that occurs in the development of multicellular beings. Cells proliferate, differentiate, migrate and interact with each other and with the extracellular matrix, forming different tissues and organs.
In other words, the process of specialization in the cells of multicellular organisms occurs when gene expression is regulated so that different genes are turned off and linked at specific times during the development of a multicellular organism.
what is an endangered species?
Answer: An endangered species is where a species of animals has a low population therefore making it endangered
An endangered species is an animal that is close to being extinct. The population is very low, too.
Why do melting ice caps make Earth warme
O
A. More solar energy is reflected.
O
B. The salinity of ocean water increases.
O
O
c. Polar ocean water cools off.
D. The ground under the ice has a lower albedo,
The ground under the ice has a lower albedo causes earth more warm.
What is lower albedo?Low albedo (dark surfaces) leads to higher uptake of energy and, hence, warming. Moreover, when more ice and snow melt, there will be more dark surfaces. This is therefore a self-reinforcing effect. Climate change in the Arctic is consequently important for the development of climate change globally.
As ice melts it reviles the ground and instead of the light being reflected it has now absorbed more cause of the water and earth.
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Which is the correct way to reheat potentially hazardous food?
A. Reheat to 145°F or hotter – within 3 hours
B. Reheat to 120°F in a steam table or other hot holding equipment
C. Reheat to 135°F or hotter – within 1 hour
D. Reheat to 165°F or hotter – within 2 hours
Answer: D. Reheat to 165°F or hotter – within 2 hours
Explanation:
Potentially hazardous foods are the food items that should be kept at a particular temperature so as to reduce and minimize the growth of microbes which can cause food poisoning. These food items includes the dairy products such as milk, seafood. cooked rice and others. Reheating is a process of heating the already cooked food. The entire mass of the cooked food should be reheated to 165 degrees Fahrenheit for a period of two hours so as to remove the potentially harmful microbes may be present in food.
The correct way to reheat potentially hazardous food is to reheat to 165°F or hotter – within 2 hours.
Explanation:Option D is the correct way to reheat potentially hazardous food: Reheat to 165°F or hotter within 2 hours.Reheating food to this temperature is crucial to kill any bacteria that may have grown during the cooling process. Option D ensures the food is reheated to a safe internal temperature, protecting consumers from foodborne illnesses.
An example of potentially hazardous food that requires proper reheating is chicken. Chicken should be reheated to an internal temperature of 165°F or hotter to kill Salmonella bacteria.
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This type of mutation occurs when one or more base pairs are added to the gene sequence. PLEASEEEEE HELPPPPP MEEEE!!!!
Answer:
Insertion
Explanation:
Mutation is a phenomenon in which the nucleotide sequence of a gene in DNA is changed into a new sequence due to insertion, deletion or exchange of a gene segment.
Insertion is a type of mutation in which one or more than pne base sequence in added into the DNA of an organism. This insertion may or may not be dangerous depending on the place of insertion and how it is causing adverse effects on the protein product of the gene.
Here is an example of insertion mutation:
Base sequence: AUG GCC TGC
Product: met ala gln
Insertion:
Base sequence: AUG GCC C TG C
Product: met ala Leu
So we can see that the product protein is changed because of insertion.
Hope it helps!
Answer:
insertion
Explanation:
i got it right
Evolution of a species acts on the
Evolution of a species acts on population and not the individual of a species.
What is Evolution?
Evolution is the process by which species adapt over time in response to their changing environment.
What is speciation?
It is the formation of new species from existing species.
It occurs in two phase -
Change of existing species.Splitting of existing species.Thus, we can conclude that evolution of a species acts on a population not on individual.
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Final answer:
Evolution of a species is driven by natural selection and other evolutionary forces, leading to changes in the genotype of a population over extended time scales and resulting in the vast diversity of life we see today.
Explanation:
The evolution of a species acts on the genetic variations present within a population over lengthy time periods. The mechanism of natural selection is pivotal, as it favors traits that enhance an organism's survival and reproductive success, thus gradually shaping the species. Although we may observe adaptive evolution in a single generation, significant changes within a species' genotype necessitate thousands to millions of years. This tireless progression has led to the extravaganza of life we witness on Earth today, with ample evidence of evolution visible in the diversity and adaptation of species.
Species and populations are continually evolving, influenced by factors like mutation, genetic drift, and gene flow in conjunction with natural selection. These adaptive processes can result in everything from minor trait adjustments within a population to the emergence of new species entirely, as populations with specific advantageous traits breed successfully and pass those traits on to succeeding generations. Darwin and Wallace's concept of natural selection underpins our understanding of these evolutionary forces and is supported by extensive evidence across various levels of biological organization.
Which of the following is not a benefit of Photosynthesis? A. Organic molecules for growth are created. B. Energy for cellular processes is generated. C. Carbon dioxide is released. D. Oxygen is released.
During photosynthesis, carbon dioxide is absorbed from the atmosphere, the correct option is C.
What is photosynthesis?The procedures by which green plants and certain other organisms convert light energy into chemical energy is known as photosynthesis.
Light energy is captured and used by green plants during photosynthesis to convert water, carbon dioxide, and mineral deposits into oxygen and energy-rich organic compounds.
Photosynthesis' primary function is to transform solar energy into chemical energy and then store that chemical energy for later use. This process powers the majority of the planet's living systems.
Plants use photosynthesis to break down the reactants carbon dioxide and water and recombine them to generate oxygen (O2) and a type of sugar called glucose (C6H12O6).
Thus, the correct option is C.
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What is gene flow?
O
A. A method of artificial selection
O
B. A random change in allele frequencies
O
C. When the population drops suddenly, then grows
D. The transfer of genes from one gene pool to another
It is the transfer of genes from one gene pool to another.
PLEASE HELP ASAPPP !
box one choices:
•a compound
•a mixture
•an element
box two choices
•alike
•bonded chemically
•mixed together
Answer:
Box one: A compound
Box two: bonded chemically
Explanation:
it's a molecule, which is a collection of atoms bonded together chemically through their electrons.
hope that helps!