Class 11 NEET Biology Animal Kingdom Questions Part 3

The correct answer is option (2) as
A. Pleurobrachia – is a member of phylum Ctenophora.
B. Radula – is a rasping feeding organ present in phylum Mollusca.
C.Stomochord – Rudimentary structure similar to notochord found in the collar region
of members of phylum Hemichordata.
D.Air bladder – is found in Osteichthyes which provides them buoyancy