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Changes Over Time
Natural Selection
| Term | Definition |
|---|---|
| adaptation | behavior or physical characteristic that allows an organism to survive and reproduce in its environment |
| evolution | the gradual change in species over time |
| natural selection | a process by which individuals that are better adapted to their environment are more likely to survive and reproduce than others that are not adapted |
| diversity | the variety of organisms that inhabit the Earth |
| Charles Darwin | the British naturalist who formulated the theory of evolution by natural selection |
| variation | any difference between organisms of the same species |
| extinction | the disappearance of all members of a species from Earth |
| homologous structures | similar structures that related species have inherited from a common ancestor |
| fossil | the preserved remains or traces of an organism that lived in the past |
| mutation | any change in the DNA of an organism |
| fitness | the ability to survive and reproduce; basically, the more offspring an organism has, the higher this characteristic is |
| camouflage | an adaptation that allows organisms to blend in or hide in their environment |
| theory | a broad explanation that explains how or why something happens; it has supporting evidence gathered by observation and/or testing |
| population | a group of organisms of the same species that live in the same general area |
Created by:
SHSbiology
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