1.

Explain the terms (i) Speciation(ii) Natural selection

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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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