Final answer:
The protective action of the agranulocyte Monocyte is phagocytosis and inflammation.
Step-by-step explanation:
The protective action of the agranulocyte Monocyte is phagocytosis and inflammation. Monocytes are a type of white blood cell that can differentiate into macrophages, which are responsible for phagocytizing pathogens and cellular debris, helping to eliminate them from the body. In addition to phagocytosis, Monocytes also play a role in the production of pro-inflammatory cytokines, which contribute to the inflammatory response.