Which group of chordates posses sucking and circular mouth without jaws ?

Which group of chordates possess sucking and circular mouth without jaws ?

Which group of chordates possess sucking and cirular mouth without jaws?

All chordates posses

All chordates posses

All chordates posses

Presence of sucking and circular mouth without jaws is character of :

Which group of organisms posses nematoblast?

Match the following {:(A.,"Amphibia",(i),"Air bladder",),(B.,"Mammals",(ii),"Cartilaginous notochord",),(C.,"Chondrichthyes",(iii),"Mammary glands",),(D.,"Osteichthyes",(iv),"Pneumatic bones",),(E.,"Cyclostomata",(v),"Dual habitat",),(F.,"aves",(vi),"Sucking and circular mouth with out jaws".,):}

Match the following {:(A.,"Amphibia",(i),"Air bladder",),(B.,"Mammals",(ii),"Cartilaginous notochord",),(C.,"Chondrichthyes",(iii),"Mammary glands",),(D.,"Osteichthyes",(iv),"Pneumatic bones",),(E.,"Cyclostomata",(v),"Dual habitat",),(F.,"aves",(vi),"Sucking and circular mouth with out jaws".,):}