Final answer:
Prokaryotes use endocytosis to obtain materials and remove waste.
Step-by-step explanation:
Prokaryotes use the process of endocytosis to obtain some materials and remove waste. Endocytosis is a type of active transport that involves the engulfment of particles by the cell membrane, forming a vacuole that contains the particle. This process requires energy, generally in the form of ATP. Endocytosis facilitates the uptake of vital compounds vital for metabolic processes, enabling prokaryotes to sustain life-sustaining functions and expel undesired substances. This fundamental mechanism showcases the adaptability of these unicellular organisms, underscoring their capacity for selective intake and waste management through an energy-intensive yet indispensable cellular process.