Biology, 31.08.2019 02:30 aileenzerr9664

Dna cannot determine behavior traits is enclosed by a nuclear membrane in prokaryotes contains coded information for the creation of proteins is a long, single chain of nucleotides

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Biology, 22.06.2019 07:30, ebzloera

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

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Biology, 22.06.2019 13:00, mimivenga

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 13:30, minecraft37385

How do ratio scale and diagrammatic scale work

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Biology, 22.06.2019 21:30, taylorreneeax9227

Which of the following locations would most likely have the most wind erosion?

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Dna cannot determine behavior traits is enclosed by a nuclear membrane in prokaryotes contains code...