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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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theGreek theGreek
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7 years ago
The umbilical cord
A) contains one large artery that delivers nutrients to the embryo.
B) permits the blood of the mother and the embryo to mix directly. 
C) protects the developing organism against jolts caused by the mother's movements.
D) seldom tangles because it is firm due to the force of the blood flowing through it.
Textbook 
Exploring Lifespan Development

Exploring Lifespan Development


Edition: 3rd
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Vol410Vol410
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7 years ago
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theGreek Author
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#2
7 years ago
Thank you, will mark the topic solved Smiling Face with Open Mouth
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