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Which statement correctly identifies the effect of gibberellin?

Answer and explanation

Correct answer: It helps increase stem length

Gibberellin is a plant growth hormone that promotes stem elongation and can contribute to an increase in overall plant height. It also has roles in seed germination and other growth processes, but stem elongation is the key effect tested here. Blood-sugar control, fear-related heartbeat, and pupil-size regulation are animal physiological functions involving hormones or the nervous system, not gibberellin. Hence, option A is correct.

Related tags

GibberellinStem ElongationPlant HormoneControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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