A. Spirogyra
B. Paramecium
C. Amoeba
D. Rhizopus
Correct Answer:
Option D – Rhizopus
Explanation
Extracellular digestion is a process in which saprobionts feed by secreting enzymes through the cell membrane onto the food. The enzymes catalyze the digestion of the food into molecules small enough to be taken up by passive diffusion, transport, or phagocytosis. Rhizopus use extracellular digestion.