You observe a sunflower that moves its leaves so that it tracks the sun across the sky through the day, and a sensitive plant that reversibly folds up its leaflets when you touch it. These are both examples of ____.
A) phototropism
B) thigmotropism
C) stress responses
D) circadian rhythms
E) nastic movements

Question

Quizplus · Accepted Answer

The sunflower tracking the sun and the sensitive plant folding its leaves are examples of nastic movements, which are non-directional responses to stimuli such as light and touch.

You Observe a Sunflower That Moves Its Leaves So That