Biology, 17.07.2019 06:40 lujaynsparkles
During double fertilization, one sperm fertilizes the egg forming a zygote. what does the second sperm fertilize to form, and what is its ploidy
Answers: 1
Biology, 21.06.2019 14:30
a client has been prescribed misoprostol for the treatment of peptic ulcer disease. what is a true contraindication for this medication
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Biology, 22.06.2019 03:00
Discuss the functions of epithelial connective nerviud and muscular tissues
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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 16:00
One reason scientists are trying to develop fuel sources from corn and sugar is because these sources are renewable fossil fuels are being depleted these crops can be widely grown all of the above
Answers: 2
During double fertilization, one sperm fertilizes the egg forming a zygote. what does the second spe...
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