Question

question: ____ is the response of a plant to the changing period of time that light is available.
answer input:
spelling counts but capitalization doesnt

Explanation:

The question is about plant responses to light duration changes. In biology (a subfield of Natural Science), photoperiodism is defined as a plant's response to the length of day (light availability period). This concept relates to how plants, like flowering plants, respond to different day - night cycles.

Answer:

photoperiodism