Of the following organisms, which is more likely to be very slow to respond to stimuli?

a: animal

b: plant

Animals produce nerve impulses that cause muscle tissue to contract. The impulse causes a rapid response. Plants, on the other hand, have growth responses called tropisms. These responses occur gradually. For example: how a plant will grow either toward or away from a light source or gravity. The growth occurs over a period of time.

So the answer is B: Plants are slower to respond to stimuli