Biology Unit 2 Revision 0.0 / 5 ? BiologyExtinction and SpeciationGCSEAQA Created by: Abbie2510Created on: 03-12-14 19:19 What is Speciation? It is the formation of new and distinct species, in the course of evolution 1 of 6 Nmae 5 causes of Extinction: Catastrophe New predators New competitors Changes in the environment New diseases 2 of 6 Name the 4 ways in which speciation can occur: -Geographical Isolation -Genetic Variation -Natural Selection -Speciation 3 of 6 What is Geographical isolation? Where 2 populations of a species become geographically separated 4 of 6 What is Genetic Variation, within speciation 5 of 6 What is Genetic Variation, within speciation 6 of 6
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