Biology, 05.01.2021 17:50 sarahcyberpony
Fossils of the same type and same age have been found on different continents. If we were to put South America and Africa together, these fossils would even be in the same area! What does this tell us? How could this happen? Can some one help me plz
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Is dna the same in every cell in the human body explain your answer
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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?
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Biology, 22.06.2019 14:00
As a result of these processes the single celled organism accomplishes
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Biology, 22.06.2019 14:40
Explain the causes and effect of damage to the genetic code.
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Fossils of the same type and same age have been found on different continents. If we were to put Sou...
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