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Tomtit [17]
3 years ago
7

What is the function of the part that is labeled A?

Biology
2 answers:
PtichkaEL [24]3 years ago
6 0
I would say the answer is A. moistens and filters incoming air.
inn [45]3 years ago
4 0

Answer: Option A

Explanation: The label A represents the nasal passage which is the passage from where the air enters the body.

This passage contains mucus membrane that helps to moisten the incoming air from the outer environment for the process of inspiration.

The moistening of the incoming air is necessary for the removal of the dirt and harmful substances that should not enter the lungs. The main function is to filter the air and then allow it to move further.

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Which of the following is a correct difference between active transport and facilitated diffusion?
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Answer:

Active transport requires energy from ATP while facilitated diffusion does not

Explanation:

Active transport and facilitated diffusion with the use of channel and carrier proteins are both ways by which ions, polar and large molecules cross a selectively permeable membrane.

The major difference is that; Active transport transport these particles from a low to high concentration, which is against concentration gradient and hence, energy is required to perform the task

Facilitated diffusion transport from a high to low concentration, which is through a concentration gradient and hence, no energy is required to perform the task.

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4 years ago
figure 6 DNA, which is made up of atoms of nonmetals, is essential to life. list at least two other substances essential to life
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