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blagie [28]
3 years ago
11

Which process helps gas exchange to occur?

Biology
2 answers:
uysha [10]3 years ago
8 0

Answer:

D. Diffusion

Explanation:

"...oxygen diffuses from alveolar sacs to blood in capillaries CPR, or cardiopulmonary resuscitation, is a first-aid technique to help save lives."

romanna [79]3 years ago
6 0
The answer is a because I think so
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Explanation:

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Which of the following statements is correct?
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The sun is at the center of our solar system but it is not the center of our universe
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Compare this community to an ecosystem. Differentiate one important difference between the organization of the two?
Nataly [62]

There seems to be a typograhical error in option B and C: the word 'community' was repeated twice. However, I've corrected it

Answer: Option B) A community refers to all the populations in an area; a ecosystem includes both biotic and abiotic components

Explanation:

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Community, on the other hand, refers to interdependence that occur within a group of plants and animals that occupy a given area. Thus, community considers only biotic factors.

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3 years ago
Enzymes speed up and direct chemical reactions.<br><br> True<br><br> False
aliya0001 [1]

Answer:

I believe True would be correct

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