True??? I think u don’t need to put the answer I gave u but it’s just my thought
<em>Answer: D.
the insect touching the trigger hairs</em>
<em>I did the test</em>
Receptors detect changes in the environment. For a stimulus to elicit a response, certain cells must have an appropriate receptor. Stimulation of the receptor initiates a specific signal pathway.
Answer is B in my opinion
