Question

define phagocytosis and digestive system​

Answer 1

Phagocytosis, or “cell eating”, is the process by which a cell engulfs a particle and digests it. The word phagocytosis comes from the Greek phago-, meaning “devouring”, and -cyte, meaning “cell”. Cells in the immune systems of organisms use phagocytosis to devour bodily intruders such as bacteria, and they also engulf and get rid of cell debris.

Answer 2

Phagocytosis is a process by which a cell uses its plasma membrane to engulf large particles, giving rise to a internal compartment called phagosomes. It's a type of endocytosis.