Question

Write the characteristic features of class mammalia

No Spam Please​

Answer 1

Class - Mammalia

• Class Mammalia is one among the four class of Tetrapoda(Limbed Animals) in sub-phylum Vertebrata.

• The body of mammals are covered with hair.

• The most unique feature of this class of animals is the presence of milk producing mammary glands.

• The ears of Class Mammalia are external ears.

• They respire via lungs.

• They are warm blooded organisms possessing a four chambered heart.

• They show sexual dimorphism.

• They have internal fertilization.

• They are viviparous and give birth to young ones.

• There are 2 living mammals that lays eggs i.e are oviparous they are , The Duck Billed Platypus and Echidna both native to Australia.