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Which option has an incorrect match between stimulus and tropism?

Answer and explanation

Correct answer: Sound and chemotropism

A tropic movement is a directional growth response to a specific external stimulus. Light produces phototropism, gravity produces geotropism or gravitropism, and water produces hydrotropism. Chemotropism, however, is a response to chemical substances, not to sound. Therefore option D is the incorrect match. The other three pairs correctly connect each stimulus with its corresponding tropism.

Related tags

TropismStimulusPlant ResponseControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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