Multiple choice

Presence of gills in the tadpoles of frogs indicates that

  1. fishes have evolved from frog like ancestors

  2. frogs will have gills in the future

  3. frogs have evolved from gilled ancestors

  4. fishes were amphibians in the past

  5. -
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Presence of gills in the tadpoles suggest that frogs or amphibians were evolved from fishes. Metamorphosis in tadpoles changed a tadpole to frog during which gills got lost.

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