Final answer:
In a hypertonic solution, the fluid contains less water than the cell does, causing water to leave the cell. An example of a hypertonic solution is seawater. When an animal cell is placed in a hypertonic solution, it can shrink or crenate.
Step-by-step explanation:
In a hypertonic solution, the extracellular fluid has a higher osmolarity than the cell's cytoplasm. This means that the fluid contains less water than the cell does, causing water to leave the cell. An example of a hypertonic solution is seawater. When an animal cell is placed in a hypertonic solution, it can shrink or crenate.