Reptiles and amphibians have a rather similar heart if not the same, they both have 2 atria and one ventricle combining to three chambers in their hearts.
No.
No, dinosaurs are more closely related to reptiles than amphibians. Both dinosaurs and reptiles belong to the group called diapsids, which are characterized by having two openings in the skull behind the eye socket. Amphibians, on the other hand, belong to a different group called tetrapods.
Yes! there's more venomous Amphibians than Reptiles.
Crocodiles are a group of reptiles and they do not belong to the amphibians. Reptiles are a more recent groep of animals compared to the amphibians.
monkey fish=2 amphibians = 3 reptiles=3.5 birds and mammals=4
Reptiles
Neither...They were reptiles. dinosaurs were nether amphibians or mammals they were all reptiles, though they are more closely related to birds.
fish,amphibians, and reptiles are water creatures, so when they beathe water cleans their air supply, which makes their imune system weak air beathers are used to pollution which means they have a stronger immune system.
lay shelled eggs
because their limbs and bones are stronger than those of amphibians
I suppose they are part of the lizard family... to put it more specific I would say they are amphibious reptiles.
They are generally considered reptiles, though some think they should have their own class.