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Biology, 22.06.2019 01:00, deshawnnash53
Nucleic acid certain protein cell membranes certain carbohydrates
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Biology, 22.06.2019 09:30, hjeffrey168
Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?
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Biology, 22.06.2019 11:30, pacoburden02
Explain the process that creates the heat of the sun?
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Biology, 22.06.2019 13:00, mimivenga
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
In what way do adaptations help the survival of a species...
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