Which of the following represents the cor- rect combination without any exception?

Which of the following represents the correct combination without any exception?

Which of the following represents the correct combination without any exception?

Which of the following represent the correct combination without any exception ?

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 of the following statements is incor- rect

Which one of the following statements is cor- rect

Which of the following statement is correct regarding sponges without any exception ?

Which of the following combinations is correct ?

Which of the following combinations is correct?

Which of the following combination is correct ?