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ICSE Class 10 Biology Question 4 of 10

Chemical Coordination in Plants — Question 8

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Question 8

The growth movement of plant parts which occurs due to touch stimulus is called:

  1. Heliotropism
  2. Chemotropism
  3. Hydrotropism
  4. Thigmotropism
Answer

Thigmotropism

Reason — The growth movement of plant parts which occurs due to touch stimulus is called thigmotropism. For example, coiling of tendrils to their support.