As a grass seed germinates, the embryonic plant secretes gibberellins, which
A) absorb light.
B) cause stem elongation.
C) mobilize stored foods.
D) take up water.
E) direct the shoot upward.
Correct Answer:
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Q28: Plant growth substances (hormones) generally
A) have a
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Q30: In the experiments of Charles and Francis
Q32: To be able to respond to environmental
Q34: Gibberellins were discovered by the biologist Eiichi
Q36: To make seedless grapes grow to normal
Q37: In addition to hormones, _ regulate the
Q51: Which of the following does not serve
Q52: The discovery of auxin can be traced
Q57: In their experiment with grass coleoptiles, Charles
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