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Mutation and Human Evolution Just as scientists gather evidence about prehistoric animals by examining bones and fossils, scientists also study human bones and fossils to learn about changes in human populations. In addition, scientists study changes in the human genome to track and understand changes in the human population. As […]

Attention deficit disorder (ADD) is a syndrome in which a person has difficulty focusing sustained attention on a task for a significant amount of time. In some cases this is accompanied by hyperactivity as well. It is currently being diagnosed at an all-time high. Between 1989 and 1996, youth visits […]

1. Explain the mechanisms involved in acid-base balance regulation for patients with chronic obstructive pulmonary disease. 2. Explain the process of new bicarbonate formation and role of the ammonium in response to the acid-base requirements of the body. 3. Describe the most common acid-base abnormalities in patients with diabetes mellitus? […]

Nocodazole reversibly inhibits microtubule polymerization, which is essential for formation of the mitotic spindle. By treating a population of mammalian cells with nocodazole for a time and then washing it out of the medium, it is possible to synchronize the cell population so that they are all in the same […]