Which is the extraembryonic membrane that serves as the first site of blood cell formation for the embryo?
A) chorion
B) allantois
C) amnion
D) yolk sac
E) zona pellucida

Name: Which is the extraembryonic membrane that serves as the first site of blood cell formation for the embryo? A) chorion B) allantois C) amnion D) yolk sac E) zona pellucida
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Question

Quizplus · Accepted Answer

The yolk sac is the extraembryonic membrane that serves as the first site of blood cell formation for the embryo.

Which Is the Extraembryonic Membrane That Serves as the First