The Living World Question 90
Question: Assertion : Evolution of man is the example of progressive evolution. Reason : Tapworm is developmed due to retrogressive evolution.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
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 tape worm which does not have digestive system.
It absorbs food through body surface.