Answer: bubble #1: hypertonic, 2: Isotonic, and 3: hypotonic.
Step-by-step explanation:
Isotonic: Denoting or relating to a solution having the same osmotic pressure as some other solution, especially one in a cell or a body fluid.
Hypertonic: Having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
Hypotonic: Having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.