[Solved] The more that behavior contributes to a cause of death, the smaller the sex difference in rates of death from that cause. Micrographs: Photographic or digital images taken through a microscope to magnify objects that are too small to be seen by the naked eye. Cell Theory: Theory that all organisms consist of one or more cells, which are the basic unit of life; all cells arise by division of preexisting cells; and all cells pass hereditary material to offspring. Multicellular Organism: An organism composed of multiple cells that are specialized to perform distinct functions, contributing to the overall functionality and survival of the organism. Glucagon: Pancreatic hormone that encourages glycogen breakdown; increases blood glucose level.