Fundamental to the process of evolution is genetic variation on which selective forces can act in order for change to
occur. Consider the mechanisms listed below. ALL BUT ONE is a mechanism for genetic variation. That is

C) adaptation

Explanation:

trust me I just got it right.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.