Biology, 02.08.2019 10:20 gudtavosanchez19
In a bacteria growing experiment, a biologist observes that the number of bacteria in a certain culture triples every 1 hours. after 5 hours, it is estimated that there are 1 million bacteria in the culture. what is the doubling time for the bacteria population? g
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Biology, 22.06.2019 04:10
What noticeable trend from this graph might be used to make a conclusion?
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Biology, 22.06.2019 10:00
An animal cell (left) and a plant cell (right) are shown.which organelle, labeled x in the diagram, is found in both plant and animal 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?
Answers: 1
In a bacteria growing experiment, a biologist observes that the number of bacteria in a certain cult...
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