Question

write characteristics of mammalia​

Answer 1

▪ Presence of mammary glands.

▪ limbs modified for bipedal motion(in some) , burrowing,flying etc...

▪ posses skin with hair.

▪ Heart is four chambered.

▪ They are homoiothermus (warm blooded)

▪ Mostly viviparous with internal fertilisation.

Exception is Ornythorhyncus(platypus) and Echidna.

Answer 2

Hola señorita.

Mammals have mammary glands. They have sweat glands. They have very complex system of metabolism nd reproduction. They are most evolved amongst kingdom animalia.

Eg: humans, shark etc...