Biology, 21.06.2019 15:00 jadeossowski3590
Blood made up of red and white blood cells work together to form
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Biology, 21.06.2019 23:30
What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a
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Biology, 22.06.2019 04:30
Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?
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Biology, 22.06.2019 09:30
What is the difference between a scientific hypotheses and a scientific theory?
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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?
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Blood made up of red and white blood cells work together to form...
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