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generation to generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time
inherited characteristic that improve an organism's ability to survive and reproduce in a particular environment
descent with modification
process by which descendants of ancestral organisms spread into various habitats and accumulate adaptations to diverse ways of life
process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals
remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species
selective breeding of domesticated plants and animals to produce offspring with desires genetic traits
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