Biology
Which of the following is a work done by the placenta tissue in humans?

Removes waste matter from the embryo and provide nutrition to the embryo
Support the embryo
Provide nutrition to the embryo
Remove waste matter from the embryo

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Biology
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

All are incorrect
The flow of solution is not possible through semi permeable membrane
Character of semi permeable membrane is not given
Exact concentration of solution is not given

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