Which of thfollowing tropisms is thresponsto touch in plants?
A) gravitropism
B) phototropism
C) thigmotropism
D) mechanotropism
E) none of these
Correct Answer:
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Q67: A housplant that has been placein thwindow
Q68: Gibberellins havtheir most dramatic effects
A)on leaves.
B)in ell
Q69: Thplant hormonthat inhibits abscission is
A)auxin.
B)gibberellin.
C)cytokinin.
D)abscisic acid.
E)ethylene.
Q70: Thplant hormonthat promotes fruit ripening is
A)auxin.
B)gibberellin.
C)cytokinin.
D)abscisic acid.
E)ethylene.
Q71: Thplant hormonthat promotes dormant buds in plants
Q73: Which of thfollowing is NOT accuratin describing
Q74: _ arstuffewith starch grains anoccur in throot
Q75: Thtarget cells for hormones
A)have special receptor (binding)
Q76: Studies on thgrowth of coleoptiles involve
A)florigen.
B)ethylene.
C)auxin.
D)abscisic acid.
E)gibberellin.
Q77: In contrast to most other plant hormones,
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