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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.
Answers: 2
Biology, 22.06.2019 06:00
Which example would the nurse consider to be a part of systems thinking theory?
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Biology, 22.06.2019 11:30
Which structure in the cardiovascular system connect arteries to veins?
Answers: 1
What is boiling point of the liquid in each animation...
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