10
lesson pretestMultiple Choice

Pretest

Question 10 • CMS 2026-2027 Biology CREDIT RECOVERY

Producers and consumers release carbon dioxide as waste during which process of the carbon cycle?

Answer
A
condensation
B
photosynthesis
C
fixation
D
respiration

Explanation

Respiration releases carbon dioxide when producers and consumers break down food to obtain energy. Photosynthesis does the opposite: it takes in carbon dioxide to make sugars. Therefore, the correct choice is respiration.

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