Increasing the Number of Stomata Per Unit Surface Area of a Leaf

question 3

Multiple Choice

Increasing the number of stomata per unit surface area of a leaf when atmospheric CO₂ levels decline is most analogous to a human

• A) breathing faster as atmospheric CO₂ levels increase.
• B) putting more red blood corpuscles (RBCs) into circulation when atmospheric O₂ levels decline.
• C) removing RBCs from circulation when atmospheric O₂ levels increase.
• D) breathing more slowly as atmospheric O₂ levels increase.

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