The Amniotic Egg
Cuticle.
No. Snakes and other reptiles generally mate and reproduce on land.
Reptiles do not require water for reproduction because they have evolved to reproduce using internal fertilization and lay amniotic eggs. These eggs have protective membranes and a shell that prevent desiccation, allowing them to develop in terrestrial environments. This adaptation enables reptiles to inhabit a wide range of ecosystems, including arid regions where water is scarce. As a result, they can reproduce successfully without needing to return to water like amphibians do.
Alligators are reptiles. Because they don't require water to reproduce, they are not amphibians.
It was an advantage because reptiles no longer had to stay near bodies of water and could live in more environments than amphibians.
No. Reptiles commonly reporduce on land.
Salamanders and newts are not reptiles because they reproduce by laying eggs in water and are aquatic for part of their life cycle. They are amphibians like frogs and toads.
Adaptation
Early land animals had to return to the water to reproduce.
Reptiles are better suited for dry climates. Amphibians must always be moist, and in order to reproduce, they must have access to water.
many desert plants like the barrel cactus , supply water with its leaves, specific "barrel" shape, etc which will let it thrive on its water that it stored
The amniotic egg allows reptiles to reproduce on land, away from water.