Answer:
Mammals:
1)It has four chambered hearts.
2) they are warm blooded animals who give birth to their younger ones.
3)have hair all over the bodies.
4)oil glands and sweat glamds are present in their body.
Reptiles:
1) they are vertebrates.
2)they are cold blooded.
3)all species fertilize eggs internally.
4)their bodies is completely covered with scales.
