Comment on the statement that ''evolution and natural selection are end result or consequence of some other processes but themselves are not processes''.
Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them.
Reason : Lamarck's theory of evolution is popularly called theory of continuity of germ plasm.
Contribution of scientist :
$(a)$ Charles Darwin
$(b)$ Lamarck
The scientists believe that evolution is gradual. But extinction, part of evolutionary story, are 'sudden' and 'abrupt' and also group-specific. Comment whether a natural disaster can be the cause for extinction of species.
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