Organisms must have variation within a population in order for natural selection to occur. which situation is an example of this variation?

The distribution of related animals and plants across the world

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

What happens during the experiment stage of the scientific method