Which of the following labelled structures helps in the exchange of nutrients, oxygen and waste products between the embryo and the mother?
A
P
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B
Q
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C
R
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D
S
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Solution
The correct option is B Q The point mentioned as Q is the placenta (also known asafterbirth) is anorganthat connects the developingfoetusto theuterinewall to allow nutrient uptake, provide thermo -regulation to the foetus, waste elimination, and gas exchange via the mother's blood supply, fight against internal infection and produce hormones to support pregnancy. The placenta provides oxygen and nutrients to growing babies and removes waste products from the baby's blood.