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Why does the stem generally show negative geotropism?

Answer and explanation

Correct answer: Because it grows upward opposite to gravity

The governing concept is the direction of growth relative to gravity. Gravity pulls downward, whereas the stem generally elongates upward toward the surface and light. Growth opposite to the direction of gravity is called negative geotropism, so option A is correct. Downward growth would be positive geotropism, movement relative to water concerns hydrotropism, and a stem does grow rather than remaining inactive.

Related tags

StemNegative-GeotropismPlant-GrowthControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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