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Life Sci - Chap 7
vocabulary words
| Question | Answer |
|---|---|
| adaptation | characteristic that improves an individual's ability to survive and reproduce in a particular environment |
| species | group of organisms that are closely related and can mate and produce fertile offspring |
| evolution | process in which inherited characteristics within a population change over generations such that a new species sometimes arise |
| fossil | remains or physical evidence of an organism preserved by geological processes |
| fossil record | historical sequence of life indicated by fossils found in layers of the Earth's crust |
| trait | genetically determined characteristic |
| selective breeding | human practice of breeding animals and plants that have certain desired characteristics |
| natural selection | process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do |
| generation time | period between the birth of one generation and the birth of the next generation |
| speciation | formation of a new species as a result of evolution |