This week's topic goes under the microscope as Julia presents the basic structural, functional, and biological unit of all known organisms. [Get ready to be hyper-aware of what's going on inside your body.] We discuss organelles, cell division, types of cells in humans, and much more. Later, enjoy a quiz called "Cell Block Tango"!

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[Music: 1) John C. Reilly, "Mr. Cellophane" from Chicago, 2001; 2) Frau Holle, “Ascending Souls,” 2017. Courtesy of Frau Holle, CC BY-NC 3.0 license.]