Final answer:
Endocytosis is a cellular process where substances are engulfed by the cell membrane, with phagocytosis and pinocytosis being specific types of endocytosis.
Explanation:
Endocytosis is the process where cells take in substances by creating a small deformation inward, capturing the substance, and forming a vesicle. Phagocytosis is a form of endocytosis where cells engulf solid particles, while pinocytosis is a similar process but on a smaller scale involving the uptake of fluids.
Learn more about Cellular Processes here:
https://brainly.com/question/34414775
