Final answer:
Cells can vary in appearance and function in many ways, such as having different shapes and structures. The nerve cell, sperm cell, and white blood cell are examples of cells with specific functions and unique appearances.
Step-by-step explanation:
Cells can vary in appearance and function in many ways. One example is the nerve cell, which has many long extensions that allow it to pass messages to other cells. Another example is the sperm cell, which has a tail that helps it swim through fluids. Additionally, there are specialized cells like white blood cells that have the specific function of destroying bacteria and pathogens. These examples demonstrate how cells can have different shapes and structures to perform their specific functions.