Reptiles are a class of tetrapod vertebrates that produce amniotic eggs, and all reptiles produce eggs with a waterproof shell full of amniotic fluid. Given these facts, reptiles are a class of tetrapod vertebrates that produce eggs with what among the following options:
- empty shell
 - Chemical energy
 - waterproof shell
 - water-filled shell
 - aerobic capacity
 - heat energy
 - kinetic energy
 - shell lining


 

   waterproof shell      