what is homostasis mechanism ? can it be caused by environmental changes and constraints?

Answer 1

Read this and then post what you think.

http://www.bookrags.com/research/homeostatic-mechanisms-wap/

Answer 2

A homeostatic mechanism maintains a balance in terms of various biological processes. If the balance is upset, the mechanism works to restore it.

Although it is not caused by environmental changes, they can activate the homeostatic mechanism.

I hope this helps a little more.