1. What relationship do you notice about the location of the Ring of Fire and the plate boundaries? 2. What relationship do you notice about the location of earthquakes, volcanoes, and the Ring of Fire?

3. What do you notice about the location of the majority of the volcanoes and earthquakes compared to the
plate boundaries?

4. Why would the majority of volcanoes and earthquakes be found on or around plate boundaries?

5. Are there examples of
earthquakes that do not occur along plate boundaries? If so, where do they occur?
Explain why you think this may be true.

Apopulation has 1000 individuals. over a period of 1 year, 500 newindividuals are born. which equation shows how to calculate the birthrate ofthis population? a. 500 - 1000 = 0.5b. 1000 x 0.5 = 500c. 1000 - 500 = 2d. 1000 + 500 = 1500

What factors contribute to the effect an environmental toxin has on the human body?

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?