Home
Class 12
BIOLOGY
Assertion: Many adaptations have evolved...

Assertion: Many adaptations have evolved ever a long evolutionary time and are genetically fixed.
Reason: Some organisms coping with extremes in the environment able to respond through certain physiological and behavioural adjustments.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B

a) Many adaptations have evolved ever a long evolutionary time and are genetically fixed.
b) Som organism coping with exteemes in their environment able to respond through certain physiological and behavioural adjustments.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion :- Desert lizards have physiological ability to cope up with variations in their environment. Reason:- They develop some alternative physiological pathway as per ambient temperature extremeties.

Assertion : The aquatic organisms in which the osmotic concentration and temperature of body change according to the ambient conditions of water are referred to as conformers. Reason : Aquatic organisms are able to maintain homeostsis through thrmoregulation and osmoregulation by physiological or behavioural means.