Question

'Mammals are more evolved than amphibians.' Justify this statement with respect to circulation of blood and reproduction.

Answer 1

Mammals	Amphibians
These organisms have 4 chambered heart for the circulation of blood.	These organisms have 3 chambered heart for circulation of blood.
It reproduces the organisms by a process called as viviparous.	It reproduces the organisms by a process called as oviparous.