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-Which Is(are) the Principal Substance(s) That Regulate(s) Thigmotropism

Question 26

Multiple Choice

-Which is(are) the principal substance(s) that regulate(s) thigmotropism? A) auxin and ethylene B) gibberellin and ethylene C) abscisic acid and auxin D) cytokinin and abscisic acid E) none of these
-Which is(are) the principal substance(s) that regulate(s) thigmotropism?


A) auxin and ethylene
B) gibberellin and ethylene
C) abscisic acid and auxin
D) cytokinin and abscisic acid
E) none of these

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