Bus #2: You head into a stem cell. Ms. Frizzle points out that there is a drug in this cell that appears to interfere with mitosis. In other words, it takes longer than usual for the cell to finish mitosis. She says, "this drug could be doing any number of things. Propose one GOOD working hypothesis, a GOOD null hypothesis, and a WELL-DESIGNED experiment to test your working hypothesis."

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Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.