Natural selection is a process by which organisms that are better adapted to their environment tend to

The correct answer is- survive and reproduce more.

Explanation:

Natural selection is a long term process in which the organism is adapted according to the environment. These organisms tend to survive and reproduce more in comparison in those who did not adapt their-selves as per the conditions.

Such an organism that adapts according to the environment shows the increase in their size as they also tend to reproduce more each generation.

Thus, the correct answer is - survive and reproduce more.

a, i am pretty sure.

answer; polycythemia is the correct answer;