Reptiles do need oxygen
Amphibians can absorb oxygen through their skin - reptiles need to physically breathe.
because they don't work as hard as humans do
Most reptiles use diffusion through the skin to obtained oxygen.
Reptiles don't get oxygen from the water. All reptiles have to come up to the surface to breathe, but can hold their breath a long time.
Yes, mammals have a 4chambered heart, while reptiles only have a 3chambered heart.
Mammals maintain a higher body temperature. In order to do so, they require more energy and that requires more oxygen.
No, its just some reptiles that obtain oxygen through their skin. Many of them breath through their lungs.
Lizards are reptiles and all reptiles breathe using lungs.
Obviously oxygen from the air.
Reptiles have various adaptations that allow some species to survive underwater for extended periods. For instance, turtles and some aquatic reptiles can hold their breath for long durations due to their efficient oxygen usage and slower metabolic rates. Additionally, certain species have specialized respiratory systems, such as the ability to absorb oxygen through their skin or cloacal respiration, allowing them to remain submerged while still deriving necessary oxygen. However, most reptiles need to surface for air periodically.
Frogs, like all other reptiles, get their oxygen through their lungs
No. Reptiles commonly reporduce on land.