What part of a flowering plant contains female reproductive
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Biology, 02.11.2019 02:31 eddsworldfrantic
What part of a flowering plant contains female reproductive
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Biology, 22.06.2019 10:00
Witch theory suggests all living things are made up of cell or cells
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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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Biology, 22.06.2019 18:50
What happens when a scientific theory is shown to be an accurate description of a phenomenon?
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