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Tendrils exhibit/twining of tendrils is due to

1. thigmotropism
2. seismonasty
3. heliotropism
4. diageotropism

Correct answer: thigmotropism

Solution

Tendrils twine when they touch a support and grow unevenly on opposite sides, causing bending toward the object. This is a classic example of thigmotropism, a directional growth response to touch.

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