Question

What is the process that some plants use to flower at the same time every year?
A. Senscenence
B. Abscission
C. Dormancy
D. Photoperiodism

Answer 1

Answer:

A.Senscenence

You're welcome <3

Answer 2

Answer:

D, Photoperiodism

Explanation:

The length of darkness that plants is called a photoperiod, and a plant's reaction to periodic darkness is called photoperiodism.