B. some species die out when environmental changes occur
Answer: Small animals such as ants, some species of mice and rats, and cockroaches.
Explanation:
The smaller the animal is, the better chance it has to survive in drastic environmental change. (They will not be affected as much because of their size) Hope this helps :)
Answer:
d
Explanation:
endocrine system controls all biological processes
Answer:
DNA
Explanation:
how does hereditary work?