Jarrick is observing a single-celled alga and knows that it undergoes photosynthesis and respiration. Which question could the student ask to find out how it can do both processes?

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a
Is carbon dioxide needed for the process of photosynthesis?
b
Are the inputs of photosynthesis the same as the inputs of respiration?
c
Is water needed for the processes of respiration and photosynthesis?
d
Are the inputs of photosynthesis the same as the outputs of respiration?

d

Are the inputs of photosynthesis the same as the outputs of respiration?