the shell keeps the egg from drying out by that I mean it keeps it moist or by leaving it it a wet dry area
well they have to be in a moist environment and wet mud to keep it from drying out.
they dont
Reptiles have developed an outer covering of scales or bony plates to retain their body moisture. Amphibian skin lets water pass in and out so amphibians must stay in or near a water source to keep their bodies from drying out. Amphibians develop from egg to larvae to adult in water. Reptiles do not have a larval stage.
Some reptiles lay egg in the nest and some reptiles lay egg on the land.
reptiles hatch from an egg
reptiles
The answer is, the colour and the pattern of the egg and the shape.
Which feature related with egg structure imposes terristrial life reptiles?
It depends on the species.
round
yes
you