Question

The ancestors of modem day frogs and salamanders are

• A. Lcthyophis
• B. Jawless fish
• C. Amphioxus
• D. Coelacanth

Answer 1

The correct option is D Coelacanth

A. Icthyophis is a genus of caecilians or limbless amphibians.

B. Jawless fishes belong to the superclass Agnatha and consist of cyclostomes and extinct conodonts and ostracoderms species.

C. Amphioxus which is also known as lancelets is fish-like marine chordates.

D. The coelacanth is the oldest bottom-dwelling fish which are considered as living fossils and they evolved into the first amphibians that lived on land and water.

So, the correct answer is Coelacanth.