[Solved] In 2015,the 20 percent of Canadian households with the highest incomes received what percentage of the total after-tax income? A)20 percent B)23.3 percent C)71 percent D)38.7 percent E)61.3 percent Light Microscope: An instrument that uses visible light and a system of lenses to magnify small objects, enabling the observation of cells and other small structures. 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.