Q. The response of different organisms to environment rhythms of light and darkness, is called

A) Phototropism
B) Phototaxis
C) Photoperiodism
D) Vernalization
Explanation

The effect of photoperiods (relative length of day anf night) or daily duration of light hours and dark periods on growth and development of plants is called photoperiodism. In other words, it involves the response of the organism to the environmental rhythms of light and darkness.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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