-The structure labeled 2 is the
A) embryo.
B) yolk sac.
C) allantois.
D) amnion.
E) chorion.

Name: -The structure labeled 2 is the A) embryo. B) yolk sac. C) allantois. D) amnion. E) chorion.
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Question

-The structure labeled 2 is the
A) embryo. 
B) yolk sac. 
C) allantois. 
D) amnion. 
E) chorion.

Quizplus · Accepted Answer

The structure labeled 2 is the amnion, which is a membrane that encloses the embryo in a fluid-filled cavity. This provides a protective environment for the developing embryo.

-The Structure Labeled 2 Is the