In an amoeba, digestion occurs within the cell through phagocytosis, whereas in a mouse, digestion occurs in specialized organs such as the stomach and small intestine through the secretion of digestive enzymes. The mouse has a more complex digestive system than the amoeba.
Amoeba is unicellular and food comes from phagocytosis. The amoeba has enzymes that work in the vehicle. A mouse is a multicellular organism that has a fairly simple digestion process the mouse ingested through their mouth and it goes through the system.
