(A) Eukaryotes Contain distinct membrane-bound organelles, yet Prokaryotes contain no internal membranes: no nuclear membrane, ER, mitochondria, vacuoles, or other organelles.
(B) Prokaryotes cells are very small: 1–10 µm, while Eukaryotes cells are larger: 10–100 µm.
(C) Eukaryotes ribosomes are very small, while Prokaryotes ribosomes are larger.
(D) Prokaryotes metabolism is anaerobic or aerobic, and Eukaryotes metabolism is aerobic