Biology, 05.07.2019 02:00 johnisawesome999
The isotope chlorine-36 decays into argon-36, with a half-life of 3.01 × 105 years. based on this information, fill in the blanks. a particular sample contains 3 × 1012 atoms of chlorine-36. after 9.03 × 105 years, there will × 10 atoms of chlorine-36 and × 10 atoms of argon-36.
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Biology, 22.06.2019 03:50
Explain how the political influence of african americans leaders became weaker.
Answers: 2
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
The isotope chlorine-36 decays into argon-36, with a half-life of 3.01 × 105 years. based on this in...
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