Question

Which is an example of thigmotropism?

A. climbing vines
B. blooming flowers
C. bending toward the light
D. leaf abscission

Answer 1

Letter A

Step-by-step explanation:

Thigmotropism is the movement as response to a physical stimulus, usually the contact with a solid object or surface. Climbing vines are the only example of this.

Blooming flowers are an inner response of the plant-

Bending toward the light responds to a different kind of stimulus, the light.

Leaf abscission is the consequence of maturity of the plant.

Answer 2

Answer A, climbing vines. Thigmotropism is growth in response to mechanical contact.