At a recent um football game, a terrorist group flew a crop duster over the stadium and dusted the western side of the stands with anthrax spores. fortunately, the wind was blowing toward the west. once cases were discovered, the investigation began. a total of 100 people who sat on the eastern side developed disease and 1000 people who sat on the western side developed disease. of the 100,000 people in attendance, 50,000 were sitting on the western side of the stadium and were considered to have been exposed. (source: ). calculate the odds ratio and interpret your results.

Which of the following is a common response to cell signaling?

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?

What are positive impacts of algae? how is it used?