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Question : a) Explain the terms : i) Speciation ii) Natural selection b) List four factors which could lead to speciation. |
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Answer» Solution :a) i) Speciation : Speciation is the evolution of reproduction isolation among once interbreeding population i.e, the DEVELOPMENT of one or more species from an EXISTING species. ii) Natural selection : Natural relationship in the process, according to Darwin, which bring about the evolution of new species of animals and parents. b) Four factors which can lead to speciation are : GENETIC drift : Over generation, genetic drift may ACCUMULATE which lead to speciation. Natural selection : Natural selection which may give rise to speciation. Severe DNA change A variation may occur which does not ALLOW sexual act between two groups. |
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