Solutions a and b are separated by a selectively permeable barrier (membrane). over time, the level of fluid on side a increases. which solution initially had the higher concentration of solute?

The Solution is A must have initially had more solutes than solution B. As a result, water moved by osmosis across the selectively permeable membrane from side B to side A, increasing the fluid level on side A.

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explanation:

a time line cause it goes from 685 to 978