Answers: 1
Biology, 21.06.2019 15:50, gbrightwell
This organism is not capable of performing photosynthesis. (horseshoe crab) true false
Answers: 2
Biology, 22.06.2019 13:00, mimivenga
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 15:30, goodluck99
Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food
Answers: 1
Which non-specific defense mechanism is mismatched with its associated body structure or body fluid?...
Mathematics, 30.03.2021 21:10
Mathematics, 30.03.2021 21:10
Mathematics, 30.03.2021 21:10
Geography, 30.03.2021 21:10
Mathematics, 30.03.2021 21:10
Law, 30.03.2021 21:10
Mathematics, 30.03.2021 21:10