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Practice question

Question

Auxin was first discovered during studies on which plant response?

Options

Choose one · Correct answer highlighted

Explanation

That points to B: Phototropism. Compared with the other options, Phototropism is the one that correctly describes the Auxin Phytohormone concept. The wrong ones are A) Gravitropism; C) Hydrotropism; D) Thigmotropism. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.