SATHEE: Plant Growth And Development Ques 23

Plant Growth And Development Ques 23

23. The response of different organisms to environmental rhythms of light and darkness is called

[1998]

(a) phototaxis

(b) photoperiodism

(c) phototropism

(d) vernalization.

Show Answer

Answer : b

Hints & Solutions

(b) Photoperiodism is the effect of duration of light and darkness on the growth, development and behaviour of an organism.

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Plant Growth And Development

Plant Growth And Development Ques 23

23. The response of different organisms to environmental rhythms of light and darkness is called

Answer : b

Hints & Solutions

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