Answer:
Examples of where primary succession may take place include the formation of new islands, on new volcanic rock, and on land formed from glacial retreats.
The answer is PHAGOCYTOSIS.
Phagocytosis refers to the process by which a cell engulf a material or another cell. In unicellular organisms, phagocytosis is a mode of feeding while in eukaryotes, phagocytosis is the mean by which the defensive agents of the immune system attack foreign bodies which are found in the system.