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Biology, 21.06.2019 22:30
Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into
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Biology, 22.06.2019 06:00
In the practice of science, this type of reasoning is used to develop explanations.
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Biology, 22.06.2019 09:00
How can an organ, such as the lungs, work for multiple body systems?
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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
Nerves at the roots of hair follicles to detect pain, temperature, itch, and hair movement are calle...
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Mathematics, 18.10.2020 07:01
Mathematics, 18.10.2020 07:01