Question

Sunflowers seem to follow the path of the sun as it travels across the sky during the day. Plants bending toward or following light is a response called

A) hydrotropism.
B) photosynthesis.
C) phototropism.
D) thigmotropism.

Answer 1

It is phototropism. Photosynthesis is the way plants make their food, from light. Notice the photo in both the words, meaning light.