Just like other cells, the part of the bacterium that is able to interact with its outside environment is its cell membrane. Generally, the main function of the cell membrane is for barrier and protection. This decides which molecules will be allowed to permeate or not. Hope this helps.
C. The process by which green plants and some other organisms use sunlight to synthesis food from carbon dioxide and water.
Answer:
I would say the answer is B because they're bigger animals.
