The blood cell which help in blood clotting are:
a) RBCs
b) blood platelets
c) WBCs
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Biology, 27.01.2021 09:40 meadowsoares7
The blood cell which help in blood clotting are:
a) RBCs
b) blood platelets
c) WBCs
d)blood plasma
Answers: 3
Biology, 21.06.2019 23:50
Differentiation of cells changes the nucleic information. true false
Answers: 2
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
Biology, 22.06.2019 16:00
Hydroelectric uses moving water to do work such as grinding grains in a mill true or false
Answers: 1
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