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olasank [31]
2 years ago
9

A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time. During this period

the virus affects the body by doing which of the following?
A. The virus uses nutrients meant for immune cells to fuel its own cellular respiration.

B. The virus produces toxins that weaken immune cells and prevent them from reproducing.

C. The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally.

D. The virus damages immune cells while using their machinery to produce copies of itself.
Biology
1 answer:
Brilliant_brown [7]2 years ago
7 0

Answer:

B is

Explanation:

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3 years ago
Please help
Ludmilka [50]
A memory B cell is kinda of how it sounds it has a memory of what your body has fought before such as a virus and can stimulate a response quicker then the first time you encountered it. 

If you lack memory B cells your body doesn't built up the same immune response when you come into contact with the virus again.

"Vaccination would prevent further disease" Incorrect, a vaccine lets you build up memory cells to combat the disease if you lack them you cannot build up a defense.
"Vaccination would not prevent further disease" Correct, a vaccine can be a dead version of a virus or parts of a virus that shows your body what to respond to quickly in the future. If you body cannot make memory b cells it wouldn't help to use a vaccine. Your body wouldn't keep a memory of it being bad.
"You would not produce antibodies" Even if your body does not remember a particular virus it does produce antibodies to combat it just not as quick or efficiantly as something it has come into contact with before and produced memory cells.
"You would over produce histamine" Incorrect, different process for that histamine.
6 0
3 years ago
Which statements describe the governmental importance of the Clean Air Act? Check all that apply.
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B) Lawmakers can find ways to reduce greenhouse gas emissions.

6 0
2 years ago
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_____________ and __________ are the components of ribosomes. A) DNA and RNA B) RNA and protein C) Ribose and amino acids D) Mic
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Answer: The correct answer for the fill in the blank is B) RNA and Proteins.

Ribosome is a molecular machinery, which is located in all living cells. It is formed from proteins and complexes of rRNA ( ribosomal RNA). That is why, it is also called as ribonucleoprotein.

Ribosome serves as the site for protein synthesis. It is primarily divided into two subunits, a larger ribosomal subunit and a smaller ribososmal subunit, which together assist the process of protein formation ( translation).

Thus, the components of ribosomes are RNA and proteins.

5 0
3 years ago
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