Question

The response of plants to periods of light and dark is called ______________. photoperiodism nocturnal variation daily activity seasonal variation

Answer 1

Photoperiodism

Step-by-step explanation:

The term "photoperiodism" was coined to describe a plant's ability to flower in response to changes in the photoperiod: the relative lengths of day and night. Because flowers produce seeds, flowering is crucially important for the plant to complete its life cycle.