Multiple choice

Opening and closing of flowers represent a kind of

  1. autonomic movement

  2. nutation

  3. tropic movement

  4. nastic movement
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nastic movements are non-directional responses to stimuli, such as the opening and closing of flowers in response to light or temperature changes. Unlike tropic movements, they do not depend on the direction of the stimulus.

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