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A disorder caused by the uncontrolled multiplication of groups of cells in multicellular organisms is _____ A. cancer. B. Escherichia coli. C. pneumonia. D. cytokinesis.
Weegy: Fossil evidence shows it happened around 600 million years ago (600ma) Surprisingly, single celled organisms began 3.6 billion years ago and went on being single for 3 billion years. User: As a cell gets larger it becomes Weegy: As a cell gets larger it's surface area to volume ratio increases. ... [ How to Become a Firefighter; Length Of Unemployment Benefits; Free GPS Lake Maps; ] (More)
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Asked 12/24/2012 7:49:20 PM
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What is the rate of cell division in our skin compared to our brains? A. Much faster B. Much slower C. The same D. It depends on the parts of the brain and skin being compared.
Weegy: The rate of cell division in our skin compared to our brain is (A) A. Much faster Generally brain cells do not divide much into adulthood. An old dogma suggested that they do not divide at all, but this was disproved in the 50s and 60s. [ A couple of areas of neurogenesis (=development of new neurons) have been pinpointed in the adult brain, for example in the hippocampus. Interestingly a reduction in hippocampal neurogenesis is robustly associated with depression, though I appreciate this is a little off topic. In comparison we completely shed our skin on a regular basis (once every month or something). Accordingly the rate of division of skin cells is high to replace the epidermal layer. ] (More)
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Asked 12/25/2012 2:19:39 AM
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What is the rate of cell division in our skin compared to our brains? A. Much faster B. Much slower C. The same D. It depends on the parts of the brain and skin being compared.
Weegy: The rate of cell division in our skin compared to our brains is A. Much faster (More)
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Asked 12/25/2012 2:16:04 AM
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