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What does positive geotropism in roots mean?

Answer and explanation

Correct answer: Roots grow in the direction of gravity

The governing concept is geotropism, a directional growth response to gravity. The word positive means growth in the same direction as the stimulus. Since gravity acts downward, roots generally grow downward along the direction of gravitational pull; therefore they show positive geotropism. Growth toward light describes phototropism, upward growth is opposite to gravity, and roots do respond to environmental stimuli.

Related tags

GeotropismRootGravity-ResponseControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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