I think the correct answer among the choices listed above is option B. For photoperiodism to occur, a plant must use a phytochrome. This is a pigment that plants use to detect light. It is sensitive to light in the red region. Hope this answers the question.
It’s True not False true is the answer
Answer:
the answer is 20 to 50 days
Explanation:
Answer:
what is this? we only understand english
