Biology Unit 2 Revision

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  • Created by: Abbie2510
  • Created on: 03-12-14 19:19

What is Speciation?

It is the formation of new and distinct species, in the course of evolution

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Nmae 5 causes of Extinction:

Catastrophe

New predators

New competitors

Changes in the environment

New diseases

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Name the 4 ways in which speciation can occur:

-Geographical Isolation

-Genetic Variation

-Natural Selection

-Speciation

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What is Geographical isolation?

Where 2 populations of a species become geographically separated

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What is Genetic Variation, within speciation

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What is Genetic Variation, within speciation

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