Which part of the amniotic egg is a fluid filled sac that allows the embryo to develop in a watery environment?

Question

Quizplus · Accepted Answer

The amnion is a fluid-filled sac that surrounds the embryo and allows it to develop in a watery environment. The allantois functions to store waste products, the chorion aids in gas exchange, the yolk sac provides nutrients, and the shell protects the egg but none of them provide a watery environment for the embryo like the amnion.

Which Part of the Amniotic Egg Is a Fluid Filled