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Natural Selection
Darwin - Evolution - Natural Selection
| Question | Answer |
|---|---|
| a structure or behavior that helps an organism survive | adaptation |
| a change in a species over time | evolution |
| the process by which evolution occurs; organisms with more favorable variations survive to reproduce | natural selection |
| the islands that Darwin visited helping him shape his ideas on evolution | Galapagos |
| differences in a structure or behavior within a population | variations |
| fighting over limited resources, either within a population or between populations of different species | competition |
| the scientist that first published the accepted theory of evolution | Charles Darwin |
| the ship that Darwin sailed on in the 1830's | HMS Beagle |
| the title and date of Darwin's book | On the Origin of Species, 1859 |
| a group of similar organisms that can interbreed and produce fertile offspring | species |
| preserved plant and animal remains | fossil |
| body parts in different organisms that are similar in structure and probably were passed on by a common ancestor | homologous structure |
| an example of homologous structures in mammals | bat wings, whale fins and cat paws |
| the four needs of an organism that are met by its habitat | food, water, shelter and a place to raise young |
| separation of populations of the same species by geography or events (river, ocean, mountain, volcano..) | isolation |
| types of evidence that scientists use to determine evolutionary history | fossils, DNA, similarities in development and body structures |
| How do new species form? | From adapting to conditions differently after separation through isolation and/or continental drift |
| A branching tree diagram showing evolutionary relationships | cladogram |
Created by:
doakes27