I'm pretty positive your answer is B-Objects attract to one another
I'm not sure I'll go with c density depends on gravity and matter
Water and sunlight and vitamin d h20
Answer:
<h2><u>
directional selection</u></h2>
Explanation:
This type of natural selection is referred to as . In this type of natural selection, either one phenotype is preferred or the other; therefore, there is no equilibrium between the populations of the phenotypes that are present.
Examples of organisms that have undergone directional selection are black bears during the ice ages, African chichlid and sockey salmon.