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Course: Science — Third Preparatory
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Quiz

Question bank: Unit 4 — Dating Planet Earth

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1.
Geographical isolation can lead to new species because:
it increases gene flow
it interrupts gene flow, so the separated groups evolve independently
it kills all organisms
it prevents mutation
2.
Which of the following is an example of a natural barrier causing geographical isolation?
A mountain range
A fence made by farmers
A zoo cage
A shopping mall
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