Part one of term paper
are some of the smallest organisms around. All living things consist of , and yet they are invisible to the naked eye. How and why are they so small? Well, are the basic structural and functional units of life. As life on earth has evolved into organisms of different species and living things, two basic laws of nature have dictated why h ...

Part two of term paper
... intercellular communications will take place while providing the ideal conditions for diffusion: Movement of molecules from a region of higher concentration to a region of lower concentration, a vital function in the life of a cell. Like wise, the surface area and volume of a cell are directly influential in the efficiency of the cell’s nutrient absorption and waste expulsion processes. Since the cell membrane of an eukaryotic cell is its only source of nutrition, its surface area must be large ...