Definition or examples of the words

natural selection

evolution

genetic variation

adaptation

allele

gene

trait

answer; Genetic variation is a term used to describe the variation in the DNA sequence in each of our genomes ... Individuals of a species have similar characteristics but they are rarely identical, the difference between them is called variation. Updated January 06, 2020. A gene is a portion of DNA that determines a trait. A trait is a characteristic, or a feature, passed from one generation to another, like height or eye color. Genes come in multiple forms or versions. Each of these forms is called an allele

Explanation:

Term

Meaning

Evolution

The process by which modern organisms have descended from ancient organisms over time

Common ancestor

An ancestor shared by two or more descendant species

Natural selection

Evolutionary mechanism in which individuals that are better suited to their environment survive and reproduce most successfully

Variation

Difference between traits in individuals of the same species

Adaptation

A trait that improves an organism's ability to survive and reproduce in an environment

Fitness

The ability of an organism to survive and reproduce

Artificial selection

Selective breeding of organisms to promote the appearance of desirable traits in offspring

Genetic drift

A mechanism of evolution in which allele frequencies of a population change over generations due to chanc