Homeostasis — Definition & Examples

Oxygen and carbon dioxide are exchanged in the alveoli of the lungs. In order for the organism to be at homeostasis, what must be true?

Choose one answer

Option A: A

The amount of oxygen entering the blood must be equal to the amount of carbon dioxide leaving the blood.

Option B: B

The amount of carbon dioxide entering the blood must be equal to the amount of oxygen leaving the blood.

Option C: C

The amount of oxygen entering the blood must be greater than the amount of carbon dioxide leaving the blood.

Option D: D

The amount of oxygen entering the blood must be less than to the amount of carbon dioxide leaving the blood.

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