(WILL GIVE What happens to a population of organisms when their environment becomes unfavorable to their survival?

1) Both answers are correct.

2) They may migrate to a more favorable environment.

3) They may go extinct.

both could be correct

Explanation:

It usually depends on how fast or how severe the change is, if its mild or happenes slowly over time they may adapt, if it is extreame or happenes very quickly the species could very well die out.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.