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Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
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Biology, 21.06.2019 20:00
The shift of a vehicle's weight around its center of gravity is known as
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Biology, 21.06.2019 22:50
An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?
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Biology, 21.06.2019 23:30
During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water
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Biology, 17.12.2019 23:31
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English, 17.12.2019 23:31
Mathematics, 17.12.2019 23:31
Mathematics, 17.12.2019 23:31
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Biology, 17.12.2019 23:31