Although the early digestive system maintains contact with the embryonic yolk sac,it does not gain any nourishment from the sac.Instead,the yolk sac is involved with the formation of
A)the heart and lungs.
B)the reproductive organs.
C)blood vessels and blood cells.
D)bones.
E)skeletal muscle tissue.

Question

Quizplus · Accepted Answer

The yolk sac is involved in the formation of blood vessels and blood cells in the early embryo, but it does not provide nourishment to the developing digestive system.

(Note: Choices A, B, D, and E are not correct as they do not relate to the function of the yolk sac in embryonic development.)

Although the Early Digestive System Maintains Contact with the Embryonic