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Growth of roots in the direction of gravity is an example of what?

Answer and explanation

Correct answer: Positive geotropism

Geotropism, also called gravitropism, is directional growth in response to gravity. Roots generally grow downward, in the same direction as gravitational pull, so their response is called positive geotropism. Hence option A is correct. Phototropism concerns light, hydrotropism concerns water, and thigmotropism concerns touch; none of these explains the stated stimulus.

Related tags

Control CoordinationGeotropismRootsControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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