Pre-Ap Science
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| Natural Selection | "survival of the fittest"
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| What will happen if the offspring survives? | it will pass on, by reproduction, useful variations to its offspring that will help that species better survive in their environment because the “weak” traits will eventually be eliminated by nature
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| Overpopulation | a species’ ability to produce more offspring than the environment can support
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| What are some factors of the offspring not surviving to adulthood? | 1. predation
2. limited resources
3. disease
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| Variation | different traits exist within a given species or population
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| Why is variation important? | f there is no variation or “options” to choose, then a species is limited to what is available; even if it is weak or unfavorable
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| When do variations come into existance? | only with a change in the organisms DNA
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| What is the change in an organisms DNA known as? | mutation
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| Why are mutations rare? | (only occur in gametes)because these cells are normally not exposed to the environmental stresses an organism may encounter in their existence;mostly occur on somatic cells because these cells are exposed to the environmental stresses
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| Why does competition occur? | because there is an overproduction in a species’ population
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| Adaptations | a specific variation that is or becomes a common trait within a population because it helps the species better survive in their environment
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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