1. The placenta comprises foetal portion and maternal portion
2. The placenta is highly vascularized to maintain steep diffusion/ concentration gradient for fast exchange/ diffusion of
material between maternal and foetal circulation;
3. Chorionic villi have microvilli on their surfaces to further increase the surface area for exchange of material between
maternal and foetal circulation;
4. Choronic villi are highly branched
johnmulu answered the question on January 18, 2017 at 09:41
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January 18, 2017
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January 18, 2017
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January 18, 2017
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Explain why a maize plant does not undergo secondary growth.
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January 18, 2017
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January 18, 2017
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January 18, 2017
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January 18, 2017
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January 17, 2017
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Date posted:
January 17, 2017
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Answers (1)
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Date posted:
January 17, 2017
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Answers (1)
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(Solved)
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Date posted:
January 17, 2017
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Answers (1)
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January 17, 2017
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Date posted:
January 17, 2017
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January 17, 2017
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January 16, 2017
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January 16, 2017
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January 16, 2017
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January 16, 2017
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Date posted:
January 16, 2017
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Answers (1)