What central theme of biology explain why various cells can look so different from one another? see section 7.3 ( page 154) ?

The Cell theory states that.. 1)all living things are composed of one or more cells 2)cells are the smallest units of structure & function of living things 3)New cells are produced by preexisting cells The 2 Domains that include all organisms that are made of prokaryotic cells are- bacteria and archaea. these organisms are multicellular and may form colonies cytoplasm fluid part of the cell plasma membrane : membrane surrounding the cell ribosomes : solid,molecular organelles that make proteins Circular DNA molecule in prokaryotes where genes are found plasmids cell wall rigid structure around plasma membrane Used for swimming (moving) through a liquid flagellum used to adhere to surfaces (like your teeth) fimbriae as a cell increases in diameter, its volume increases more than its surface area. the surface area to volume ratio is reduced since the surface is where the cell exchanges substances w/its environment, the reduction in this ratio decreases the rate of exchange. thus making cell work less efficient

C) reflection (i also looked up the other choices just to make sure)