Biology, 25.11.2021 14:00 sis2depoxd8mj
What is an ecological pyramid with explanation
Answers: 3
Biology, 21.06.2019 17:20
What protects the lining of the stomach from acidic gastric juices?
Answers: 1
Biology, 22.06.2019 05:30
The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.
Answers: 3
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 14:00
Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet
Answers: 1
What is an ecological pyramid with explanation...
Computers and Technology, 20.02.2020 18:23
Physics, 20.02.2020 18:23
Biology, 20.02.2020 18:23
History, 20.02.2020 18:24
Mathematics, 20.02.2020 18:24
Mathematics, 20.02.2020 18:24
Social Studies, 20.02.2020 18:25