Which of the following statements is true for | vedclass

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(A) Mammals are characterized by the presence of mammary glands,hair on the skin,and a diaphragm that separates the thoracic cavity from the abdominal

Vedclass · Accepted Answer

Platypus is oviparous.

Vedclass · Answer

(A) Mammals are characterized by the presence of mammary glands,hair on the skin,and a diaphragm that separates the thoracic cavity from the abdominal cavity. $A$. Platypus (Ornithorhynchus) is a monotreme,which is an egg-laying mammal (oviparous). This is a correct statement. $B$. Bats are mammals and possess hair,not feathers. Feathers are a characteristic feature of birds (Aves). $C$. Elephants are placental mammals and are viviparous,not ovoviviparous. $D$. The diaphragm is a unique characteristic feature of mammals,so it is present,not absent.

Which of the following statements is true for mammals?

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