BIODIVERSITY and EVOLUTION

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What is Ecological Succession?

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The change an ecosystem experiences over time.

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What is survival of the fittest?

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It is where the fittest don't die out and therefore reproduce and pass on their genes.

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What is forest fragmentation?

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The division of forests into separate sections that are spread out instead of one continuous forest.

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What role do pioneer species play in primary succession?

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They break down rocks to create soil for plants to grow in.

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How does natural selection occur?

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When adaptations help an organism reproduce and survive.

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What are adaptations?

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Traits that enhance an organism's ability to survive and reproduce in its environment.

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Define biodiversity.

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The variety of life in a particular habitat or ecosystem.

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What is primary succession?

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The process of ecological change that occurs in an area where no soil exists.

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What is secondary succession?

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The process of ecological change that occurs in an area where soil exists but has been disturbed.

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What is a keystone species?

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A species that has a disproportionately large effect on its environment relative to its abundance.