* Animal cells: Some animal cells have flagella. Flagella are whip-like structures that help with movement. For example, sperm cells use flagella to swim.

* Plant cells: Plant cells rarely have flagella. They primarily use other methods like growth and wind for movement. There are a few exceptions, such as some plant sperm cells.

Key Point: While flagella are more common in animal cells, it's not a defining characteristic of either type of cell.