Which of the Following Actions Occurs in Many Plants When

question 32

Multiple Choice

Which of the following actions occurs in many plants when CO₂ concentrations are high?

• A)Guard cells lose turgor,and the stomata partially close.
• B)Water evaporates at a higher rate than usual.
• C)CAM photosynthesis fixes CO₂ at night.
• D)Oxygen is used by plants for photosynthesis.
• E)Calcium ions are transported faster through the phloem.

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