8. Which of the following substances is NOT a component of cells? A. DNA B. Mineral C. RNA 9. Is the Cell Theory still acceptable and significant today? How? 1. No, because cell theory is not based on further investigation. II. No, because this theory are just hypothesis made by scientist. III. Yes, because living cell are come from pre-existing cells produced trough cell division. IV. Yes, because this theory states that all living things such as plants and animals are made up of cells. d. II, III and IV only c. I, III and IV only b. lll and I only a. I and II only​