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What are growth-irrelevant movements? Give examples.

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  • Some specific movements of the plants do not lead to the plant growth. Such movements are called growth-irrelevant movements. 
  • In the plant called venus fly trap, there is a trap that appears and smells like flowers and deceives insects. When an insect visits the flower-like trap, the trap closes up and the trapped insect is digested by the plant. 
  • Fibrils present on the leaves of the insectivorous plant Drosera, bend inward as soon as an insect lands on the leaves and surround the insects from all sides. 
  • In Balsam, the ripened fruit dehisces (burstsopen) at the right time to disperse the seeds.

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