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

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Biology
The kidneys are stimulated to produce renin

When the pH of the urine decreases
When the specific gravity of urine rises above 1.10
When the peritubular capillaries are dilated
By a decrease in the blood pressure

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