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Which group of chordates posses sucking ...

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

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The correct Answer is:
Cyclostomata
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All chordates posses

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

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".,):}

(a) In which groups of non-chordates would you find closed circulatory system ? (b) Why is closed circulatory system advantageous ?

Match column I with column II and select the correct option form the given codes. {:(,"Column I",,"Column II"),("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 without jaws"):}

Which animals is non- chordate ?

Which of the following represents the correct combination without any exception {:(,"Characteristics","Class",),((a),"Mouth ventrcal, gills without operculum, skin with placoid scales, persistent notochord","Chondrichthyes",),((b),"Sucking and circular mouth, jaws absent, integument without scales, paired appendages","Cyclostomata",),((c),"Body covered with feather, skin mosit and glandular, fore-limbs form wings, lungs from wings, lungs with air sacs","Aves",),((d),"Mammary gland, hair on body, pinnae, two pair of limbs","Mammalia",):}

Which ones posses larval stages ?

All chordates posses the following features except

Which of the following does matter posses