An Ameoba cell can change its shape and a white blood cell in human blood can also changing its shapes. What is the difference between an Amoeba cell and a white blood cell?

An Ameoba cell can change its shape and a white blood cell in human blood can also changing its shapes. The difference between an Amoeba cell and a white blood cell is that the Amoeba cell is a full-fledged organism which is capable of independent existence. While white blood cell is only a cell of human blood which is not a full-fledged organism and hence cannot exist independently. White blood cells can exist only inside the blood.