Answer:
<h2>because she says that some of them grew white and some grew red.</h2>
Explanation:
<h2>idk if this is correct</h2><h2 />
The atmosphere which is the lowest layer
Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.
