Mammals maintain a higher body temperature. In order to do so, they require more energy and that requires more oxygen.
Yes, mammals have a 4chambered heart, while reptiles only have a 3chambered heart.
Reptiles do need oxygen
Mammals need oxygen to breathe. Oxygen is a gas that is in the air. Without oxygen, mammals cannot live long.
because unlike mammals they are fed on milk and of course they are warm blooded therfore they need more enery they need more energy to keep their body temperature higher im not intierly sure
No. Bats don't produce oxygen. Bats are mammals and mammals need to oxygen to survive.
Apart from moving about, replacing worn-out cells and such, mammals are warm-blooded, and need to spend a fair bit of effort on keeping their body temperature up. This in particular makes mammals need more food than reptiles for instance.
They all need forms of nourishment to suvive.
Amphibians can absorb oxygen through their skin - reptiles need to physically breathe.
Because being warm blooded, they need food to keep themselves warm.
Because - Mammals are warmblooded and more active - they turn much of the food they eat into heat for their muscles, so they are able to move quickly. Reptiles and amphibians are cold-blooded, and are relatively inactive - they get what little heat they need from their surroundings.
Yes. Kangaroo rats are mammals, and therefore need to breathe oxygen, like all vertebrates.
Depends on the location, many reptiles and mammals, typically not animals who need water constantly.