Which statement BEST describes the theory of natural selection?
Select one:
It increases the size of a population
It requires the individuals to be identical
It guarantees the survival of a species
It happens over a long period of time

It guarantees the survival of a species

Explanation:

organisms become better adapted to their environment and tend to survive and produce more offspring

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

the answer is 100% density i've answered this question before and done the quiz myself.