A plant's response to the relative lengths of light and dark periods in its environment during each 24-hour period is a phenomenon called ____.
A) gravitropism
B) photoperiodism
C) thigmotropism
D) circadian rhythms
E) phototropism

Question

Quizplus · Accepted Answer

Photoperiodism is the response of plants to the relative lengths of light and dark periods, which influences flowering and other developmental processes.

A Plant's Response to the Relative Lengths of Light and Dark