Evolution is defined as:

a. a change in a physical trait of an individual during its lifetime.

b. a change in the frequency of alleles in a population over time.

c. survival of the fittest.

d. a change in the frequency of a physical trait in a population over time.

e. a progressive "ladder" of changes from the most primitive organisms to the most advanced organisms.

E is your answer.

Explanation:

Since evolution targets a whole species or everything completely, it wouldn't be a individual and e makes the most sense since evolution is inevitable

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

life would be meaningless without memes