LIFE SCIENCE

Detailed explanation-1: -Macrophages and neutrophils display a variety of cell-surface receptors that enable them to recognize and engulf pathogens.

Detailed explanation-2: -In addition, macrophages play an important role in eliminating diseased and damaged cells through their programmed cell death. Generally, macrophages ingest and degrade dead cells, debris, tumor cells, and foreign materials.

Detailed explanation-3: -In their role as a phagocytic immune cell macrophages are responsible for engulfing pathogens to destroy them. Some pathogens subvert this process and instead live inside the macrophage. This provides an environment in which the pathogen is hidden from the immune system and allows it to replicate.