Which pigment is responsible for the phototropism responses of plants?
A) Phytochrome
B) Ethylene
C) Chlorophyll
D) Auxin
E) Xanthophyll
Correct Answer:
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Q44: Plants that flower in the United States
Q50: What caterpillar saliva- based chemical stimulates a
Q51: Willow trees and many other plants produce
Q52: The process of aging is called
A) senescence.
B)
Q53: What happens to phytochromes after several days
Q54: The phytochrome Pr
A) is the active form
Q56: Short- day plants flower only if
A) the
Q58: Senescence in plants usually involves
A) apical dominance.
B)
Q59: Which environmental factor is most significant for
Q60: Which of the following is TRUE of
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