Biology, 22.04.2021 14:00 lindsey0456
I'm looking for friends to stick around . Friends I can be weird around, unless I'm stuck with this life of solitude.
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Biology, 22.06.2019 01:50
Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules
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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
Biology, 22.06.2019 14:20
Which feature would you expect to find in a population in which sexual selection depends on male competition?
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Biology, 22.06.2019 18:30
In two sentences explain the differences of neutrophil and macrophage
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I'm looking for friends to stick around . Friends I can be weird around, unless I'm stuck with this...
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