Biology, 29.08.2019 06:00 cheryljoseph69
You respond automatically to many different stimuli, such as a loud nosies. why might a quick response to a sound be important
Answers: 1
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 13:00
Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?
Answers: 3
You respond automatically to many different stimuli, such as a loud nosies. why might a quick respon...
Mathematics, 31.01.2020 07:55
History, 31.01.2020 07:55
Mathematics, 31.01.2020 07:55
Mathematics, 31.01.2020 07:55
English, 31.01.2020 07:55
Biology, 31.01.2020 07:55
Mathematics, 31.01.2020 07:55
History, 31.01.2020 07:55
Chemistry, 31.01.2020 07:55
History, 31.01.2020 07:55
Mathematics, 31.01.2020 07:55
Biology, 31.01.2020 07:55