Biology Evolution

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Natural selection favours those members of a population best suited to an environment.

Rare mutant forms sometimes enjoy a selective advantage if some biotic or abiotic factor brings about a change in the environment making it favour their survival at the expense of their competitors.

The rapid appearance of bacteria resistant to antibiotic is an example of high-speed evolution.

The members of a species form a natural interbreeding group which is reproductively isolated from other species.

The process of speciation depends on barriers to gene exchange dividing a population into two or more separate groups, each of which takes its own course of evolution.

Adaptive radiation is the divergence over a…


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