Mark and Ken were taking a lunch break. Mark bought some fast-food from a major chain, while Ken ate an egg salad and pork he got from his aunt. Mark got norovirus and hepatitis A virus. Ken got sick because he got infected with Giardia and trichinella. Which person will experience and inflammation of the liver?
Ans: Mark

Sand mining in the north coastal region was stopped 20 years ago, but it still continues to this day in the south region. Both fishing communities there are still prosperous, but the southern one had a couple of bad years, with fish and other marine wildlife becoming more scarce. The southern beach had erosion problems as well. The northern beach recovered, and is suitable for tourism. Which region has a lower water turbidity?
Ans: northern

In the sub-Saharan African country of Nigeria, there are two main species that tend to travel in groups. The antelope tend to travel in groups in high numbers, and thus exhibit a high density. Meanwhile, the bison tend to travel in groups of small numbers, and therefore exhibit low density. Both the antelope and the bison have natural predators that exist in Nigeria. Individuals from which species, the antelope or the bison, will have lower rates of predator vigilance behavior?
Ans: the antelope

Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems. Which island had fewer days with smog?
Ans: Red