Question

Assertion (A) Frogs have webbed feets.
Reason (R) Degree of webbing is directly proportional to the amount of time they spend in water.

• A. If both A and R are true and R is the correct explanation of A
• B. If both A and R are true, but R is not the correct explanation of A
• C. If A is true, but R is false
• D. If A is false, but R is true

Answer 1

Answer: (B)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Frogs have webbed feet as it helps in swimming. The degree of webbing is directly proportional to the amount of time a frog spends in water, e.g. the completely aquatic African dwarf frog (Hymenochirus sp.) has fully webbed toes, whereas those of white tree frogs (Litoria cairulea), arboreal species, have quarterly webbed toes.