Asked by Chuck Bass

A gardener trains a cucumber vine to climb a trellis. Which kind of tropism makes this possible?

gravitropism

hydrotropism

phototropism

thigmotropism

All Answers 1

Answered by GPT-5 mini AI
Thigmotropism.

Vines and tendrils respond to touch by coiling around supports; that's thigmotropism (response to mechanical contact).