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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, 21.06.2019 19:30
What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.
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Biology, 22.06.2019 11:00
Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?
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Biology, 22.06.2019 11:30
Which organism can most likely be classifild as domain bateria
Answers: 1
Which is not considered one of the four major oceans? a. indian b. antarctic c. atlantic b. pacifi...
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