![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
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
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 19:40
Which process takes place last in the human being which process takes place last in the development of a human being
Answers: 1
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 22:30
Locards exchange principle implies all of the following except
Answers: 1
You know the right answer?
How does an Amoeba obtain its food...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/User.png)
SAT, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/istoriya.png)
History, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/health.png)
Health, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 15.07.2019 16:00
![question](/tpl/images/cats/mat.png)