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olasank [31]
3 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]3 years ago
7 0

Answer:

B is

Explanation:

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___ is the process of producing cellular energy in the presence of oxygen.
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Answer:

A aerobic is the answer

Explanation:

I took the test

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3 years ago
However, had it been a real sound, the sound's pitch would have been increased by the Doppler Effect, since the Falcon was movin
kow [346]

Answer:

Towards the southern of the sound

Explanation:

As the motion of the source of sound is moving,the percieved sound frequency varies .this is known as Doppler effect.the sound waves emited by the sources tends to bunch up in front of the source and spread out behind the source.

Since the falcon is moving towards the sound,the frequency increases and so does the pitch of the sound

8 0
3 years ago
How is an enzyme’s shape affected when it becomes denatured?
sladkih [1.3K]

Answer:

Explanation:

it becomes distorted, it can no longer bind to its substrate, it no longer works correctly. ... they each have a unique shape that the substrate needs to stick to.

8 0
3 years ago
What type of plankton is the major portion of the baleen whale's diet?
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Zooplankton is what I would put
3 0
3 years ago
Place the following materials in the order in which they are likely to fossilize. Begin with the material that is most likely to
marusya05 [52]

Answer: correct order--->

1)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Explanation:

Fossilization is the ability of an organism to be preserved and remain unaltered for a very long time. Through research , it has been found out that Harder  parts of the body tend to remain preserved for a long time  because they  naturally have minerals deposited in them and may only be reduced,  but the softer part or tissues do not get preserved for a long time because being made up of polymer can be disintegrated easily by natural biological and physical processes.

The order of which material will likely fossilize is

1.)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Reason,

--Teeth and bones biologically contain calcium but the teeth is more tougher and durable than the bone, Even when a  body is decomposed, the teeth most times are not  affected at all.

Bones of an adult mammal left on the surface will decompose faster than the one buried because of the biological (natural decomposing ) and physical processes(temperature, wind, sunglight, rainfall ) which will both act on it at the same time because of its exposure.

- soft body parts of any animals will decompose fastest as bacteria will feed on it immediately since it lacks minerals that can elongate preservation.

5 0
4 years ago
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