Although the Early Digestive System Maintains Contact with the Embryonic

question 75

Multiple Choice

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.

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