![Biology](/tpl/images/cats/biologiya.png)
Biology, 05.01.2021 16:40, ttwright24
What is an advantage and disadvantage of using 4.5-7.5 pH paper?
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 17:30, kayadaniels2
How can you keep track of variables in a science experiment?
Answers: 1
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
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?
Answers: 1
Do you know the correct answer?
What is an advantage and disadvantage of using 4.5-7.5 pH paper?...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mir.png)
World Languages, 28.05.2020 18:59
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/en.png)
English, 28.05.2020 18:59
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
English, 28.05.2020 18:59
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)