I posted this question three days ago but no one answered.

Question

Hi you guys I am having trouble with the "cell communication" chapter so I would really appreaciate if someone could help out with this question
"What could happen to the target cells in an animal that lack receptors for local regulators?"
I know that some regulators found in animals are gwoth factors that stimulate cells to grow and multiply. so a possible answer could be that the cells would not be able to multiply but I do not know if they could develop normally in response to neurotransmitters instead. Please help me. Thank you in advance. :)

Answer 1

We seem to be lacking in volunteer biology staff. Sorry. Life sciences people must be busy with real jobs these days.

Answer 2

They would not be expected to multiply in response to growth factors from nearby cells.