Question

Name and briefly describe two traits that amphibians and reptiles share that are not common to all vertebrates.

Answer 1

1.Scaly skin. This keeps the animal from losing too much water to the environment.
2. Shelled amniotic egg. This allows the egg to incubate on land without drying out, allowing the adults greater range on land than would be the case if they had to return to water to lay eggs.