Artificial Selection -- humans changing a species by breeding for certain traits

Heritability -- ability of a trait to be passed down from one generation to the next

Natural Selection -- mechanism by which individuals inheriting beneficial adaptations produce more offspring than others

Population -- all individuals of a species in an area

Fitness -- ability to survive and produce offspring

Variation -- difference in physical traits of an individual compared to others in its group

Adaptation -- feature that allows an organism to better survive

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