No, amphibians are their own species.
None of the above. They are given their own class.
Mammals are warm-blooded animals that give birth to live young (with the exception of the platypus). They also feed their young with the mother's milk, and often have hair or fur on their bodies. Reptiles are cold-blooded animals (most do not produce their own body heat) that lay eggs instead of giving live birth (there are a few snakes that push this boundary). Reptiles usually have scales instead of hair or fur. Amphibians are also cold-blooded animals that lay eggs, but differ from reptiles because they spend much of their lives in water. For example, a land-faring toad begins life as a tadpole in water. Amphibians can also breathe through their skin, to a certain extent. Certain amphibians also have gills like fish do.
They are all reptiles, so reptiles and amphibians, as the two groups are usually lumped together.
Mammals are warm blooded, reptiles and amphibians are cold blooded.Mammals can regulate their own body temperature and are therefore said to be warm blooded, while reptiles rely on the sun to raise their body temperature (hence the reason why you see lizards 'sunbathing') and are therefore said to be cold blooded
They are generally considered reptiles, though some think they should have their own class.
Scientists call animals that cannot make their own body heat ectotherms, which means they rely on external sources to regulate their body temperature. Examples include reptiles, amphibians, and most fish.
Lizards (like snakes and other reptiles) are cold-blooded. They absorb heat from the sun in order to warm their bodies so they can forage for food. The cannot maintain their own temperature.
Most reptiles like to sunbask for a good portion of the day because they cannot produce their own heat.
Because they can generate their own body heat - reptiles cannot and need a warm environment
They have their own species called insects. They are from the phylum arthropods and are related to crustaceans.
if you mean animals that cant produce their own heat then i know that reptiles rely on their environment for heat as well as a way to cool down. im sure amphibians would also fall in that category. cant think of any others off the top of my head...hope this helps!!!