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

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.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

Centriole.centrioles are present in animal cells but are usually absent in plant cells.