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Tresset [83]
3 years ago
5

What macromolecule is the primary energy source for organisms?

Biology
1 answer:
Liula [17]3 years ago
3 0
<span>Carbohydrates are the primary source of energy for the body.
That's your answer.
</span>
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Which is true about water molecules?
rodikova [14]

Answer: C

Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.

It could be B as well but, I believe it's C

3 0
3 years ago
Which stage of the human immunodeficiency virus (HIV) would a client with a CD4 T cell count of 325 cells/mm3 be classified
kirza4 [7]

Based on the CDC guidelines a person with a CD4+ cell count between 200-400 is regarded as being in <u>the second stage</u> of the HIV infection.

Acquired Immunodeficiency Syndrome

Acquired immunodeficiency syndrome (AIDS) is a condition caused by HIV (human immunodeficiency virus). AIDS is a chronic disorder and can become life-threatening for the infected person. The HIV viruses reproduce inside the host and while doing so they destroy the CD4+ immune cells which reduce the person's ability to fight against other diseases.

CD4+ cell count and AIDS

According to the CDC (U.S. Centers for Disease Control and Prevention), HIV infection is categorized into different stages based on the number of CD4+ cells.

  • Stage 1: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 2: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 3: - The CD4+ cell count falls below 200 and AIDS-related symptoms and conditions are present.  

Learn more about HIV infection here:

brainly.com/question/13662165

#SPJ4

7 0
2 years ago
1. Science has limits and cannot answer all questions. Define science, and then give an e question that science is able to answe
sattari [20]

Answer:

science is the study of the structure and behavior of our world and universe.

Things science cannot explain

Why ice is slippery

How many species of animals and living things there are

Explanation:

5 0
3 years ago
What type of energy is used by your body when you eat food?
Aleks [24]
The answer to your question is <span>chemical energy

</span>
5 0
3 years ago
Which two substances need to react to produce the brown colored benzoquinone
tia_tia [17]
The two substances needed in this situation are:

potato extract and catechol<span />
6 0
3 years ago
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