Tadpoles are the larval forms of frog and toads. They respire through gills whereas the adult form respire through the skin and lungs. Since, fishes also respires through gills. Hence, presence of gills in the tadpole indicates that frogs are evolved from gilled ancestors. Related Theory "Ontogeny recapitulates phylogeny" mean that the development of individual organisms (ontogeny) follows (recapitulates) the same phases of the evolution of larger ancestral groups of related organisms (phylogeny).
Presence of gills in the tadpole of frog indicates that:
NEET UG 2004 — Zoology Structural Organisation in Animals
2004mcqhard
Presence of gills in the tadpole of frog indicates that:
Official previous-year question
Held on 30 Apr 2004 · Verified 9 Jul 2026.
Options
- A
fishes were amphibious in the past
- B
fishes evolved from frog-like ancestors
- C
frogs will have gills in future
- D
frogs evolved from gilled ancestors.
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