One of the following can be used as an illustration to demonstrate process of evolution in animals
A
Extinction of some animals like cheetah
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B
Occurrence of tadpole in the life history of frog
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C
Presence of egg laying mammals in Australia
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D
Increasing incidents of DDT resistance in mosquitoes
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Solution
The correct option is D Increasing incidents of DDT resistance in mosquitoes DDT resistance demonstrates a genetic change due to environmental factor i.e. DDT spray.