Assertion (A): Evolution of man is the example of progressive evo… - Vidyadip

MCQ

Assertion (A): Evolution of man is the example of progressive evolution.
Reason (R): Tapeworm is developed due to retrogressive evolution.

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.

✓

Answer

Both A and R are true but R is not the correct explanation of A.
Explanation: Progressive evolution is the formation of more complex specialized organisms from simple and less elaborate forms. Examples: evolution of amphibians from fish like ancestors and evolution of birds and mammals from reptile-like ancestors. Retrogressive evolution is the formation of simple and less elaborate forms from more complex and specialized ones. Example: evolution of many parasitic organisms like tapeworm which does not have digestive system. It absorbs food through body surface.

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