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Yakvenalex [24]
3 years ago
10

What happens to the partial pressure of oxygen in a sample of air?

Biology
1 answer:
schepotkina [342]3 years ago
7 0
If there are respiring organisms within that sample of air, the partial pressure of oxygen decreases because the organisms utilize it for respiration activities.
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4. This is the site of protein synthesis
borishaifa [10]

Answer:

b

Explanation:

5 0
3 years ago
Read 2 more answers
Second Position
Scorpion4ik [409]

Answer: Leu (leucine)

Explanation: The mRNA code for a DNA strand of AAT is UUA. The amino acid that UUA codes for is Leu, short for leucine (I don't know if you need the full name of it).

4 0
3 years ago
Which of the following would indicate that a person has developed a hereditary form of hypertension
Salsk061 [2.6K]

The hereditary form of hypertension is detected when the adrenal gland produces too much aldosterone.

<u>Explanation:</u>

Hypertension is an important risk factor for several cardiovascular disease. If prolonged it damages the blood vessels causing malfunctioning of the heart, kidneys and brain. Hypertension can be caused due to various genetic or environmental factors.

There are cases where familial hypertension are detected. This is caused due to the mutation in a single gene which is passed on to the generations where even in young age the children are seen affected with hypertension.

This in medical terms is termed as familial hyperaldosteronism type II. This is occurred due to the mutation in CLCN2 gene. It tends to produce too much of aldosterone hormone which causes high blood pressure.

5 0
3 years ago
.(choose all which
11111nata11111 [884]

Answer:

Myogenic mechanisms

Hormones

Sympathetic nervous system  

Explanation:

Myogenic mechanisms work in the arterioles that serve the glomerulus.

They cause the smooth muscle cells in the arterioles to contract and relax in response to blood pressure changes.

The sympathetic nervous system increases blood flow through the kidneys during resting conditions.

At times of stress, it decreases blood flow through the kidneys, making it more available to the rest of the body.

The hormones angiotensin and aldosterone regulate blood volume by controlling retention of Na⁺ and water.

C is wrong. The parasympathetic nervous system mainly controls visceral organs such as glands.

6 0
3 years ago
When two species compete for the same ecological niche, they cannot coexist because they are competing for the exact same resour
zalisa [80]
The correct answer is B. competitive exclusion.
This law refers to the fact that it is nearly impossible for two species to exist in the same place at the same time together, if they are interested in the same resources. If both species need the same thing to survive, one will have to be stronger while the other one will dwindle in number. 
5 0
3 years ago
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