The Figure Below Illustrates the Results of a Laboratory Experiment

question 13

Multiple Choice

The figure below illustrates the results of a laboratory experiment that simulates potted irises being exposed to differing lengths of darkness.

How would flowering in these irises be affected by disrupting the length of their light exposure?

• A) It would stimulate flowering.
• B) It would suppress flowering.
• C) It would stimulate branching and increase total flower production.
• D) There would be no effect because irises use the length of darkness to coordinate flowering.

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