Biology, 28.07.2019 05:00 rosieposie27
If blood is in short supply, which blood type would be the most beneficial to have on hand if someone needed a blood transfusion?
Answers: 2
Biology, 21.06.2019 22:30
Models are non-visual ways of coummincating how someone thinks about something in the natural world
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Biology, 22.06.2019 07:30
Ture or false evidence for evolution includes millions of fossils
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Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
If blood is in short supply, which blood type would be the most beneficial to have on hand if someon...
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