How do cells maintain water balance through osmosis? if a salt water fish is placed in a fresh water aquarium, water will leave the fish's cells. in the experiment, the only isotonic solution was the 10% salt water solution. the egg swelled in distilled water because it is hypotonic to the egg's interior. the concentration of solute is greater inside the egg than it is in the kayro syrup. the egg swells when placed in a hypertonic solution.

The answer is;  The egg swelled in distilled water because it is hypotonic to the egg's interior

Osmosis is the movement of water from a hypotonic solution to a hypertonic solution through a semi-permeable membrane. The cell utilizes this phenomenon to indirectly regulate water in its cytoplasm by regulating the amount of osmotically active solutes in its cytoplasm through active transport.  

the answer is d.) homologous; have mammary glands

thats not even an aswer choice