The Face of a Sunflower Turns to Follow the Sun

Question

The face of a sunflower turns to follow the sun as it moves across the sky. This is an example of
A) metabolism.
B) homeostasis.
C) response to stimuli.
D) development.
E) reproduction.

Accepted Answer

The face of the sunflower turning to follow the sun is an example of the plant responding to a stimulus (the movement of the sun). This is a classic example of phototropism, which is a plant's response to light. Metabolism, homeostasis, development, and reproduction are important processes for living organisms, but are not related to the sunflower's behavior in this scenario.