1. Tardigrade
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  3. Biology
  4. The twinning of tendrils around a support is a good example of :

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Q. The twinning of tendrils around a support is a good example of :

Haryana PMTHaryana PMT 2000

Solution:

Thigmotropism involves nastic movements resulting from touch. It occurs in tendrils which coil around support and help the plant in climbing. Phototropism is a paratonic movement in response to unidirectional light stimulus. Chemotropism is a directional paratonic movement that occurs in response to a chemical stimulus.