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Card 6

Front

What is the biggest influence on species survival?

Back

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Card 7

Front

How have many species died out over several million years (short time in geological terms)?

Back

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Card 8

Front

What is the most famous of the various ideas suggested to explain the extinction of dinosaurs?

Back

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Card 9

Front

What is the less known idea suggested to explain the extinction of dinosaurs?

Back

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Card 10

Front

How can new species arise from existing species and how can geographical isolation occur?

Back

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Card 11

Front

How does isolation occur in the case of an island separating from mainland?

Back

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Card 12

Front

When do we know speciation has occurred?

Back

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Card 13

Front

What is speciation?

Back

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