adaptation, a characteristic that improves an individual's ability to survive and reproduce in a particular environment., ancestor, any organisms, population, or species from which any of these have descended by reproduction., evolution, the process by which inherited characteristics can change over time., mutation, a change in the sequence of a DNA molecule., natural selection, the process by which individuals that are better adapted to their environment to survive or reproduced., variation, the occurrence of hereditary or nonhereditary differences between different individuals., acquired trait, A nonhereditary change of function in an organism made in response to the environment., fossil, the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock., extinction, the death of every member of a species, Charles Darwin, known for his theory on evolution., species, a group of closely related organisms that can mate to produce fertile offspring.

Evolution definitions #1

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