The scaly skin is largely waterproof, allowing a reptile to retain its body moisture even in a dry environment.
No, they did not.
lay shelled eggs
Antonym means opposite. Reptiles and amphibians aren't opposites. There are no antonyms for either word.
yes, it has a heart beat, it breaths, it may be cold blooded but it still has a life, so it is an animal!
to protect them from pridators
Hard shelled or leathery eggs that can incubate/hatch outside of water, allowing them to migrate dry areas. Skin that prevents transpiration, allowing them to live on land without dehydrating. These would be primary...the third could be any of a number of adaptations, changes in locomotion, eye sight et cetera
The main difference between the two is that Anseriformes are well suited to a life in the water, and Galliformes are more suited to a life on land. Anseriformes include ducks, geese and swans. They have webbed feet, short legs, dense waterproof plumage and flattened (dorsoventrally) bills. They are well adapted to a life in water. Galliformes include chickens, turkeys, pheasants and quail. They have large, stout legs and are suited to a terrestrial lifestyle (on land). They are not well suited to flying.
Although some types of reptiles are semi-aquatic or fully aquatic, most are fully terrestrial. Amphibians, however, spend part of their time in fresh water, and part on land. The name amphibian even refers to the fact that they live "both kinds of life."
Reptiles have scaly skin that helps prevent water loss, compared to the permeable skin of amphibians that requires moisture to breathe and stay hydrated. Additionally, reptiles have more efficient lungs that allow them to fully rely on breathing air, while amphibians have dual respiration capabilities through both lungs and skin. Lastly, reptiles lay amniotic eggs with protective shells that allow for successful reproduction on land, unlike amphibians that typically rely on aquatic environments for their eggs to develop.
Mammals,birds and reptiles are fully adapted to life on land. Fish live in water and amphibians start their life in water, then live on land.
Faulty AnswerAnswer Coming Soon...- Prism Fable
They are not necessarily better. Some animals are more suited to life in a maritime environment but that does not make them better or worse than so called terrestrial animals anymore than animals suited for a terrestrial (land) environment are better.