In which phase mother exchanges substances to fetus, Biology

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Exchange of oxygen, nutrients, carbon dioxide and waste products from mother to fetus takes place through diffusion across the:

a) Chorionic villi (pron: core-e-on-ick villi)

b) Colostrum

c) Endometrium

d) Corpus luteum

ANSWER: A -- CHORIONIC VILLI

 


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