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Luba_88 [7]
2 years ago
12

Someone plz hurry up and answer!!!

Biology
1 answer:
Korvikt [17]2 years ago
6 0

The answer is C. The energy of the acacia tree is passed on to the impala.

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The human immunodeficiency virus (hiv) that causes the disease known as aids selectively infects ________ cells.
Furkat [3]

The human immunodeficiency virus (HIV) that causes the disease known as aids selectively infects helper T cells (CD4+).

This retrovirus also infects macrophages and dendritic cells. When CD4+ T cell numbers decrease below a critical level (due to the killing of this cells with different mechanisms), cell-mediated immunity is lost. As a result, the body becomes progressively more susceptible to infections, leading to the development of AIDS.

<span> HIV can be transmitted only via body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk, which means that people usually get or transmit HIV through sexual behaviours and use of the needle. For HIV infection, these fluids must come in direct contact with a mucous membrane or damaged tissue. Another way is to be directly injected into the bloodstream (from a needle for example).</span>

7 0
2 years ago
A cell goes through cellular respiration and produces ATP which it then uses to move a molecule across the cell membrane. How do
exis [7]
The answer to your question is : the glucose in the kinetic energy is stored in potential energy in the ATP. After the kinetic energy would be released when the molecule moves across the cell membrane.
5 0
3 years ago
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What group of organisms is most closely related to archeabacteria?
enot [183]
Protista Organisms are most closely related to Archeabacteria.
8 0
2 years ago
Ok how do I fix my constipation
OleMash [197]

Answer:

Regular exercise for example swimming, walks

Increase the content of fiber in food, choose higher fiber cereals and legumes

Desist from waiting or holding in the urge to defecate

Avoid processed or fast foods, white bread, doughnuts, pastries

Drink more fluids, especially water

Eat more fruits as they help relieve constipation. For those with edible skins, do not peel them as they are rich in fiber

Explanation:

Try this

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2 years ago
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When doing medical research with human subjects, which four limitations are un voidable?
viva [34]

The four limitations are

1.It's often impossible to repeat trials on the same subjects.

2-Subjects may report an inaccurate medical history.

3-It can be difficult to control all possible variables.

4-It's impossible to come up with testable scientific questions for human subjects.

Research involving human beings is ultimately necessary for improvements in human health and welfare. Any results about healthy physiology, illness causes, treatment effectiveness, learning, or behavior must be verified by carefully controlled investigations involving human participants. Sadly, not all human research have been valid and beneficial. It is possible to harm people in the name of research. The most well-known instances happened in Nazi Germany. Investigations conducted after the war found several crimes, including experiments in which participants were submerged in extremely cold water to determine how long it would take them to pass away from hypothermia.

Learn more about Medical research here

brainly.com/question/15215894

#SPJ10

6 0
2 years ago
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