Seed germination is stimulated by:
A) auxin.
B) gibberellin.
C) cytokinin.
D) ethylene.
E) abscisic acid.
Correct Answer:
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Q14: Which of these hormones helps plants tolerate
Q15: The synthetic herbicide 2,4-D is actually a(n):
A)cytokinin.
B)ethylene
Q16: How a plant cell responds to a
Q17: Gravitropism is a plant's:
A)directional response to gravity.
B)response
Q18: Pea plant tendrils wrapping around a string
Q19: Discovered in 2007, the hormones that control
Q20: The hormone _ was named after the
Q21: Placing a ripe apple in a bag
Q22: The relative sizes of roots and shoots
Q23: Ethylene:
A)promotes gravitropism.
B)inhibits stem elongation.
C)prevents leaf senescence.
D)stimulates seed
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