Figure 30.9A

-The effect of directional growth shown in the accompanying figure is known to be caused by ____.
A) thigmotropism
B) gravitropism
C) abscisic acid
D) salicylic acid
E) vernalization
Correct Answer:
Verified
Q30: A plant secretes _ when it needs
Q31: Photoperiodism is the _.
A) duration of
Q32: Cycles of biological activity that are repeated
Q33: The flowers of plants pollinated by night-flying
Q34: Deciduous trees in North America are dormant
Q36: The mechanism that causes a vine's tendrils
Q37: The requirement of cold weather before a
Q38: A houseplant placed in a window grows
Q39: Figure 30.18C Q40: A directional adjustment of growth in response
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