At night, when little red light is available to the plants in an area:
A) Pr and Pfr are both destroyed.
B) Pr and Pfr are both formed from inactive phytochrome.
C) Pr is converted to Pfr.
D) Pfr is converted to Pr.
E) Pr stimulates flowering.
Correct Answer:
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Q45: Which pigment is responsible for the phototropism
Q46: The process of aging is called:
A)maturation.
B)elongation.
C)abscission.
D)death.
E)senescence.
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A)the duration of
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A)shade from other
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