In unicellular organisms, essential nutrients can be transported directly to all parts of their body by the process of diffusion only because unicellular organisms have:
- A. a large surface area to volume ratio
- B. a large volume to surface area ration
- C. permeable cell membrane
- D. outer membrane made of cellulose
- E. their body always immersed in the nutrient material.
Ans: A. a large surface area to volume ratio