Answers: 2
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 10:00
If an organ has six haploid chromosomes,how many chromosomes are present. 6 12
Answers: 1
Biology, 22.06.2019 11:30
There are multiple lines of evidence that provide support for common ancestry and evolution. write 3-4 paragraphs describing at least three of them in detail. provide at least one example for each line of evidence.
Answers: 1
Biology, 22.06.2019 13:00
This rapid change in species that rarely leaves behind fossil evidence is referred to as
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Name the membrane that covers the heart.
what is heartbreak ?...
what is heartbreak ?...
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