What plant hormone has a central role in apical dominance?
A) auxin
B) ethylene
C) gibberellin
D) phytoestrogens
E) abscisic acid
Correct Answer:
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Q40: Quaking aspen trees reproduce vegetatively by _.
A)suckers
B)corms
C)bulbs
D)tubers
E)rhizomes
Q41: Which of the following chemicals is used
Q42: What is the principal substance that mediates
Q43: In contrast to most other plant hormones,
Q44: On a hot, dry day a plant
Q46: Bananas are propagated by _.
A)grafting
B)adventitious roots
C)tissue culture
D)treating
Q47: The binding of a plant hormone to
Q48: How many varieties of apples account for
Q49: The plant hormone that coordinates the effects
Q50: The plant louse Phylloxera was responsible for
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