A useful control for the experiment would have included which of the following?

A useful control for the experiment would have included which of the following?


I. Expose the plant to 32 hours of continuous moderate light and measure rates of carbon dioxide uptake and tissue starch concentration

II. Expose the plant to 32 hours of continuous dark and measure rates of carbon dioxide uptake and tissue starch concentration

III. Measure the chlorophyll concentration in the plant's leaf tissue

a. I only

b. II only

c. III only

d. I and II only

e. I, II and III



Answer: D


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