Question

an isotonic solution has a(n) ________ concentration of solute (dissolved stuff) than inside the cell.
lower
higher
equal

Explanation:

To solve this, we recall the definition of an isotonic solution. An isotonic solution is one where the concentration of solute (dissolved substances) outside the cell is equal to the concentration of solute inside the cell. A hypotonic solution has a lower solute concentration outside the cell, and a hypertonic solution has a higher solute concentration outside the cell. So, based on the definition of isotonic, the correct term is "equal".

Answer:

equal