Competitive occurs between two species when competition is so intense that one species causes the second species to move from an area.

Exclusion

Explanation:

Competitive exclusion is when one species does just what the definition says

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

did you fail the test? xd