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Biology, 21.06.2019 23:30
Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?
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Biology, 22.06.2019 09:00
Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f
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Biology, 22.06.2019 09:30
Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from
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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
How do tissues work together to perform a similar function? Provide an example to illustrate your po...
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