Biology · STRUCTURAL ORGANISATION IN ANIMALS
हिन्दीMale frogs can be distinguished externally from female frogs by the presence of:
Correct answer · Option 4
Vocal sacs and a copulatory pad on the first digit of forelimbs
Explanation
Male frogs exhibit sexual dimorphism by the presence of sound-producing vocal sacs and a copulatory pad on the first digit of the forelimbs.