Final answer:
Phagocytosis is the process of engulfing and destroying foreign particles. It is carried out by specialized cells called phagocytes and is an important defense mechanism against pathogens.
Step-by-step explanation:
Phagocytosis describes the engulfing and destruction of a foreign particle. It is a process in which a cell engulfs solid particles, such as bacteria or cellular debris, and digests them using enzymes. This process is carried out by specialized cells called phagocytes, which are part of the immune system. Phagocytosis is an important defense mechanism against pathogens.