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Arturiano [62]
3 years ago
14

Examine the illustration of the HIV virus. What part of the HIV virus serves to protect the nucleic acid core?

Biology
2 answers:
Fed [463]3 years ago
5 0
The correct answer is A: Capsid. 
pochemuha3 years ago
4 0
A should be the correct option!
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Which valve separates between the left atrium and left ventricle
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Mitral valve

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How do I solve for this
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Exercise and reactions to exciting stimuli include _______. A. increased activity in all parts of the peripheral nervous system
jok3333 [9.3K]

Exercise and reactions to exciting stimuli include increased activity in the sympathetic, and decreased activity in the parasympathetic divisions.

<h3>What is the sympathetic nervous system?</h3>

The autonomic nervous system includes the sympathetic nervous system. It might be referred to as the "automatic" nervous system because it controls many processes that we don't have to think about. This can affect a variety of bodily processes, such as the regulation of our heart rate, blood pressure, digestion, urination, and perspiration. For its role in reacting to risky or stressful conditions, the sympathetic nervous system is best known.

<h3>What is the parasympathetic nervous system ?</h3>

One of the two functionally separate and perpetually active divisions of the autonomic nervous system is the parasympathetic nervous system (PNS) (ANS). It opposes the sympathetic nervous system, which is the other (SNS). In calm "rest and digest" situations, the parasympathetic nervous system predominates, whereas the sympathetic nervous system activates the "fight or flight" response in stressful circumstances. The major functions of the PNS are to regulate body processes like digestion and urine as well as to store energy for later use.

Hence, Option B is correct.  Exercise and reactions to exciting stimuli include increased activity in the sympathetic, and decreased activity in the parasympathetic divisions.

To know more about parasympathetic nervous systems, refer:

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8 0
2 years ago
Name a protein used as a hormone in our body.<br><br><br><br> Please help
ioda

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amylin, calcitonin, gastrin

Explanation:

There are a few for you.

4 0
3 years ago
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03]The water in a location is tested regularly to identify contaminants. The nitrate levels in the water from 1994 to 1997 are s
Brut [27]

Answer:

Although the question is incomplete, missing options are

  • In 1997, they reduced their water consumption.
  • In 1996, they planted more trees to curb water pollution.
  • In 1994, they used only bottled water for drinking purpose.
  • In 1995, they complained about foul odor and taste in water.

Correct option: <em><u>In 1996, they planted more trees to curb water pollution. </u></em>

Explanation:

Among given options, a clear trend of nitrate level can be seen. <u>Initially, the nitrate level increased in water in first two years (1994 and 1995) and then it decreased significantly</u>.

From the conditions given in the question, the most probable answer is B the plantation effect (<u>phytoremediation</u>). During phytoremediation, <u>plants take up nutrients including nitrate</u> from the water via roots. This nitrogen is then used for the growth and development of plant body mass (e.g. amino acids). As more plants were growing in later years, higher reduction of nitrate was seen. Resultantly, in 1997, the concentration of nitrate was dropped to 7.3 mg/L.

The other options are not correct due to following reasons.

A. There is no information on water consumption in the question

C. There is no information on people's behavior on drinking water lifestyle.

D. Nitrate in the water cannot be smelled or tasted.

8 0
3 years ago
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