Point out the mammalian characters.

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Question

(A) Mammals are characterized by the presence of a diaphragm,which is a muscular partition separating the thorax from the abdomen,a four-chambered hea

Vedclass · Accepted Answer

Diaphragm,four-chambered heart,lungs

Vedclass · Answer

(A) Mammals are characterized by the presence of a diaphragm,which is a muscular partition separating the thorax from the abdomen,a four-chambered heart,and lungs for respiration.Viviparity is a common trait but not absolute,as some mammals like the $Platypus$ are oviparous (egg-laying).Feathers are characteristic of birds,while gills and fins are typical of aquatic organisms like fish.Neural glands are not a feature of mammals.Therefore,the correct set of mammalian characters is diaphragm,four-chambered heart,and lungs.

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