Biology, 22.01.2021 16:40 bcozort611
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The table lists the observations students made about four specimens under a microscope. Based on these observations, what specimens did the
students examine?
animal
plant
virus
prokaryote
cell membrane present
ribosomes present
lysosomes present
nuclear membrane present
cell wall present
ribosomes present
nuclear membrane absent
cell wall present
ribosomes present
nucleus present
large vacuole present
8:27
Answers: 1
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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
Drag each tile to the correct location.
The table lists the observations students made about four s...
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