Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired appendages. Cyclostomata (b) Body covered with feathers; skin moist and glandular, fore- limbs form wings; (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia (d) Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyeslungs with air sacs. Aves

Which of the following represents the correct
combination without any exception ?
Characteristics Class
(a) Sucking and circular mouth;
jaws absent, integument
without scales; paired
appendages.
Cyclostomata
(b) Body covered with feathers;
skin moist and glandular,
fore- limbs form wings;
lungs with air sacs.
Aves
(c) Mammary gland; hair on
body; pinnae; two pairs of
limbs.
Mammalia
(d) Mouth ventral; gills without
operculum; skin with
placoid scales; persistent
notochord.
Chondrichthyes
by

1 Answer

Answer :

(c) Mammary gland; hair on
body; pinnae; two pairs of
limbs.
Mammalia
by

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