When Phytochrome Is Activated to Sense a Change in the Environment

Multiple Choice

When phytochrome is activated to sense a change in the environment, what is most likely happening in a seedling?

A) the normal developmental process activated by seedlings when exposed to heat
B) the normal developmental process activated by seedlings when exposed to light
C) the normal developmental process activated by seedlings when exposed to cold
D) the normal developmental process activated by seedlings when exposed to salinity