Question

Which term names the change in the environment that causes an organism to change its activity?

Answer 1

Hey there!

Stimulus names the change in the environment that causes an organism to change its activity.
This means your answer is Option D.

Hope this helps you.
Have a great day (:

Answer 2

D) Stimulus is the answer, because the stimulus is what gives us the quick reactions to things we see, hear, and smell. Like if someone were to punch you, your instinct would be to dodge it or put your hands up. If you heard a loud sound you would like flinch or cover your ears from instinct. Also, if you were to smell something your natural instinct is to cover your nose, gag, or say something about it.
Hope This Helps :)