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Mini science quiz
| Question | Answer |
|---|---|
| evolution | a change over time |
| fossil | the preserved remains of an ancient organism |
| natural variation | differences among individuals within a species |
| struggle for existence | competition for food, space and other resources among members of a species |
| fitness | the ability of an individual to survive and reproduce in a specific environment |
| adaption | inherited characteristics that increase an organism's chance of survival |
| natural selection | survival of the fittest |
| homologous structure | structures that develop from the same embryonic tissues but have different mature forms |
| vestigial organs | organs with little or no function |
| Theory | a well backed up hypothesis with lots of evidence and considered facts |
| artificial selection | taking parts that are desired and bred into an organism |
| survival of the fittest | competition for food, space and other resources |
| descent with modification | generations of a species that changes over time |
| how did Darwin interpret the fossil record | the older the fossil the deeper the fossil is in the ground the newer the higher |
| what conditions force organisms to compete in a struggle for existence | similar food source and territory and mating |
| How do successful adaptions improve an organism's fitness | helps them survive and reproduce |
| what does descent with modification imply about the relationships among the different species on earth today | they have a common ancestor |
| common descent | all living things that have a common ancestor |
| Lamarck's theory of evolution | birds started with no wings they wanted to fly so they grew wings |
| Darwin's voyage was abroad the HMS | beagle |
| Darwin's hypothesis about how life changes over time is now called the | theory of evolution |
| how do humans affect artificial selection. What role does nature play | Nature provides variation and humans select variations that are useful |
| over time what is the result of natural selection | animals that can't survive or reproduce die |
| Identify four types of evidence that Darwin used to support his concept of evolution | Geographical distribution homologous body structure fossil record vestigial organs |
| how does an animal's level of fitness relate to its chances of survival and reproduction | it increases there chances to reproduce and survive |