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cluponka [151]
3 years ago
7

In contrast to inhalation, exhalation: Select one: a. is an active process caused by decreased intrathoracic pressure. b. occurs

when the diaphragm lowers and expels air from the lungs. c. is a passive process caused by increased intrathoracic pressure. d. requires muscular effort to effectively expel air from the lungs.
Biology
1 answer:
puteri [66]3 years ago
4 0

Answer:

C. is a passive process caused by increased intrathoracic pressure.

Explanation:

Inhalation is an active process as it includes the contraction of muscles and diaphragm. Exhalation is a passive stage of breathing. It does not include any muscular contraction. Rather, diaphragm and the external intercostal muscles become relaxed. This reduces the volume of the thoracic cavity and lungs. The reduced volume causes increased air pressure in alveoli as compared to the atmospheric pressure. The increased pulmonary pressure drives the movement of air towards the outside of the body.

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At the end of meiosis 1, how many chromosomes are in each cell?
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In Osmosis, a cell becomes turgid when it:
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7 0
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Read 2 more answers
PLEASE HELP!
mash [69]

Based on current data;

  • The amount of carbon dioxide put into the atmosphere annually dueto human activities is 840 gigatons
  • The amount of carbon in the atmosphere is 10 gigatons
  • The amount of carbon stored in fossil fuels is 10,000 gigatons

<h3>What is the carbon cycle?</h3>

The carbon cycle a cycle showing how carbon is recycled between the atmosphere and earth.

The carbon cycle ensures that their is a balance of carbon in the atmosphere as well as on earth.

Human activities have increased the amount of carbon in the atmosphere.

The amount of carbon dioxide human activities put into the atmosphere annually in the present day is 840 gigatons.

The amount of carbon in the atmosphere is 10 gigatons

The amount of carbon stored in fossil fuels is 10,000 gigatons

Therefore, it can be concluded that human activities disrupt the carbon cycle.

Learn more about carbon cycle at: brainly.com/question/24293689

7 0
2 years ago
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