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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, 22.06.2019 05:00
This comparative chart is an example of one that might be used by scientists and law enforcement personnel for identification purposes. the chart represents a technological advance called
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Biology, 22.06.2019 08:00
Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure
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Biology, 22.06.2019 10:00
If an organ has six haploid chromosomes,how many chromosomes are present. 6 12
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Which of the following is not a function of a vertebrate’s endoskeleton?
a.) Increase speed of dige...
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