Ascientist is studying the various prokaryotic and eukaryotic species found floating in a sample of water taken from a marine ecosystem. which cellular component will be found in the widest range of organisms in the sample? a. the chloroplast, since all organisms need a source of energy. b. the ribosome, since all organisms need to synthesize proteins. c. the mitochondrion, since all organisms need to break down glucose. d. the cell wall, since all marine organisms need them for support.