Answers: 3
Biology, 21.06.2019 23:00
Which of the following is not a defining characteristic of plants?
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 16:30
Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.
Answers: 3
1. How do living things get energy from the sun?
2. The more cells an organism has, the more _ it w...
Biology, 05.02.2021 05:10
Arts, 05.02.2021 05:10
History, 05.02.2021 05:10
Mathematics, 05.02.2021 05:20
Mathematics, 05.02.2021 05:20
Mathematics, 05.02.2021 05:20
Mathematics, 05.02.2021 05:20
Mathematics, 05.02.2021 05:20
Social Studies, 05.02.2021 05:20