NEET 2026 (Phase 1) · BiologyPrevious Year Question
Male frogs can be distinguished from female frogs due to the presence of A. Bulging eyes B. Vocal sacs C. Webbed digits in feet D. Copulatory pad on first digit of fore limbs E. Olive green-coloured skin with dark irregular spots Choose the correct answer from the options given below
- A.B and C only
- B.C and E only
- C.A and B only
- D.B and D only✓
Correct Answer
(D) B and D only
Solution & Explanation
Answer: (D) B and D only. Male frogs are distinguished by sound-producing vocal sacs (B) and a copulatory pad on the first digit of the fore limbs (D). Bulging eyes (A), webbed digits in feet (C) and olive green skin with dark irregular spots (E) are common to both sexes. NCERT (Class XI, Ch 7 Structural Organisation in Animals): p.81, lines 5-8 — "Frogs exhibit sexual dimorphism. Male frogs can be distinguished by the presence of sound producing vocal sacs and also a copulatory pad on the first digit of the fore limbs which are absent in female frogs."
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