6. What is the primary function of the plant hormone auxin?
(A) Inhibit seed germination
(B) Promote cell elongation and phototropism
(C) Stimulate stomatal closure
(D) Reduce transpiration
(E) Activate pathogen defense mechanisms
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統計: A(1), B(9), C(1), D(0), E(0) #3429685
統計: A(1), B(9), C(1), D(0), E(0) #3429685