Question

Male frogs can croak louder than females because of

• A. Large size
• B. Being strong
• C. Large sound box
• D. Vocal sacs

Answer 1

The correct option is D Vocal sacs

Vocal sac is sound-resonating throat pouch present in male frogs only. When it is used by them to give calls, it expand and filled with air and amplify their calls. Hence, male frogs can croak louder than females.

So the correct answer is 'Vocal sacs'.