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Diversity and adaptions

Published on Dec 01, 2015

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PRESENTATION OUTLINE

Diversity and adaptions

Chapter 22 Vocabulary
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Biodiversity

the measure of the number of different species in an area
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What factors could affect the level of biodiversity in an ecosystem?

Adaptations

Any body shape, process or behavior that helps an organism survive
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What type of adaptations might a polar bear have?

Natural selection

the organism with the traits best suited for their environment survive

Principles of Natural Selection:

1) Overproduction of offspring

2) Survival due to variations

3) Reproduction

4) Pass on successful variations

Fossil

The remains or traces of ancient life
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Why are fossils important?