Which macromolecule provides a person with most of the energy that is needed for daily activities?

Answers

Answer 1

Answer:

Answer;

Carbohydrates;

The macromolecule that provides a person with most of the energy that is needed for daily activities is carbohydrates.

Explanation;

-Biological macromolecules fall into four categories: carbohydrates, proteins, lipids and nucleic acids. The body uses carbohydrates, lipids and proteins for energy.

Carbohydrates are the main source of energy and for structural purposes, Lipids are used to store energy; important parts of biological membranes and waterproof coverings, Nucleic acids helps to store and transmit hereditary or genetic information. Proteins functions as a source of energy and to control the rate of reactions and regulate cellular process.

Answer 2

Answer: carbohydrates.

ATP usually releases energy by breaking down the weak phosphate cell present. The energy released due to the breaking down of the phosphate cell is then utilized. The ATP is converted to ADP. Whenever a cell feels the necessity for energy it releases a phosphate to gather the energy. It is an automatic and ongoing process. The weak bond between the second and the third phosphate is always targeted for turning ATP to ADP. This is the reason ATP is considered the main energy currency for the cell.

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Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection B. Disruptive selection C. Stabilizing selection D. Artificial selection

Answers

Answer;

-Disruptive selection

Disruptive selection results in the creation of two distinct phenotypes.

Explanation;

-Disruptive selection is a type of natural selection that selects against the average individual in a population. The make up of this type of population would show phenotypes of both extremes but have very few individuals in the middle.

-The variance of the trait increases and the population is divided into two distinct groups. The disruptive selection will cause organisms with intermediate traits to reproduce less, and will allow those organisms with extreme traits to reproduce more.

I think it is
B.Disruptive selection.

Which of the following is NOT an example of reproductive isolation? A. differences in courtship song between two populations of meadowlarks B.difference in the timing of breeding seasons of male frogs
C.differences in food preferences between two populations of birds
D.failure of sperm and egg production in hybrids between two populations of insects

Answers

Answer:

C.differences in food preferences between two populations of birds.

Explanation:

Reproductive isolation is a type of isolating mechanism which may further lead to speciation.

In this type of isolating mechanisms, the two types of organisms are isolated as they are unable to either mate or even if they mate, they fail to produce a viable progeny.

Reproductive isolation can occur due to :

1. Different mating strategies, time or place.

2. Inability to fertilize.

3.Production of a sterile or viable progeny.

Therefore, from the given option differences in food preferences is not a type of reproductive isolation as it does not follow any of the three listed mechanisms.

Final answer:

Reproductive isolation includes mechanisms that prevent different species from producing viable offspring. These can include behavioral, temporal, or biological factors. Differences in food preferences do not contribute to reproductive isolation.

Explanation:

In the context of evolution, reproductive isolation is a set of mechanisms, behaviours and physiological processes that prevent members of two different species that cross or mate from producing viable, fertile offspring. Examples include differences in behaviours like courtship songs, differences in breeding season timing, or incompatibility of gametes (like sperm and eggs) of two species.

Therefore, the choice C - differences in food preferences between two populations of birds is NOT an example of reproductive isolation. It's a ecological difference, not a barrier to mating or producing viable offspring.

Learn more about Reproductive Isolation here:

brainly.com/question/32382634

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One of the advantages of nuclear power over traditional fossil fuels is that nuclear power _____.

Answers

One of the advantages of nuclear power over traditional fossil fuels is that nuclear power produces much larger amount of power. The Fort Calhoun plant in Nebraska has one reactor with the smallest generating capacity1 of 479 megawatts (MW). Hope this answers the question.

Answer: A it’s based on uranium,which is plentiful

Explanation:

Just took the test on odyssey ware

Which activity is most likely a result of a sudden, unexpected change in the environment?. . A.A snake shedding its skin. B.Birds migrating to the south. C.The extinction of a type of shrimp. D.Bears hibernating.

Answers

Answer - C
Snakes periodically shed their skin in order to regrow new skin. Birds migrating to the south and bears hibernating are also a result of normal periodic transitions. However, extinction of a type of shrimp is most likely a result of a drastic change in the environment.

The activity that is most likely a result of sudden, unexpected change in the environment would be the extinction of a certain type of shrimp. Any extinction will change the environment in its own way. The correct answer is C.

What is the role of cerebrum?

Answers

the principal and most anterior part of the brain in vertebrates, located in the front area of the skull and consisting of two hemispheres, left and right, separated by a fissure.

The main role of the cerebrum, which consists of the frontal, parietal, temporal and occipital lobes, controls all involuntary and voluntary things, like thinking, movement, sight, breathing, heartbeat, hearing, etc.

What does human reproduction usually involves

Answers

Sexual intercourse. The developing of the female egg cells and the production of sperm cells

The human reproduction system usually involves internal fertilization by sexual intercourse. During this process, the male inserts his erect penis into the female's vagina and ejaculates semen, witch contains sperm.

Hope that this helps . AND HAVE A BRAINLY DAY .

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