Evolution and Natural Selection

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The survival of a species is affected by...

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environmental changes, disease and competition.

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Animals which can adapt to the challenges they face can...

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survive and reproduce.

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Animals which can survive and reproduce can pass on .......... which give their offspring an advantage too.

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alleles

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What happens to alleles that lead to non-advantageous features?

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They eventually decrease and disappear.

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Another word for the permanent loss of a species is...

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extinction

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Animals which are close to extinction can also be referred to as...

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endangered.

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The idea that all life on Earth is related to organisms which first appeared over three billion years ago is also known as...

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evolution.

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What are not evidence for evolution?

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Eyewitness testimonies

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The person responsible for the 'Origins of Species' and much of our current understanding about evolution is Charles...

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Darwin

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Why is the theory of evolution controversial for many people?

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It suggests that all life evolved rather than being created by God.

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