Chemistry
Chemistry, 09.10.2019 05:00, rosepotato789

In monostremes the placenta absors oxygen and food from the mothers blood.

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Biology, 22.08.2019 17:00, skateboardb718
Which statement is true of a placenta? a. the placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother. b. the placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus. c. the placenta mixes blood from the mother and fetus together. d. the placenta protects the mother from being attacked by the fetal immune system.
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Biology, 27.09.2019 03:20, electrofy456
Before baby a was born, she was not sending much blood to her lungs. instead, the blood passed through the septal defect into the left atrium, which sent it to the left ventricle and to her body. but why didn't the baby die if no blood was going through her lungs? (a) she was so small that the small amount of blood that did go through her lungs was enough (b) she was getting her oxygen from placenta, not from breathing (c) before the last trimester, babies use anaerobic respiration, so she did not need oxygen (d) she sent her blood out into her mother's body and through her mothers lungs instead
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In monostremes the placenta absors oxygen and food from the mothers blood....

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