I have a new situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies. But I can use this background: Gasoline-powered vehicles emit a lot of harmful materials. Nitrogen oxides are formed when atmospheric nitrogen reacts with oxygen at the high temperatures found in a car engine. Carbon monoxide is a by-product of incomplete combustion of hydrocarbons. Evaporated and unused fuel releases volatile hydrocarbons into the atmosphere to help form smog. The presence of a catalytic converter in the exhaust system of the car causes these materials to react and be changed into less harmful products. What is an answer for this question: Which town had less evaporated and unused fuel?
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Answer: Valley

I have a new situation: Terry and Jake are currently at a dinner party of a mutual friend. They are having a conversation while enjoying a glass of wine when suddenly on the TV there is a commercial about a new disease. This prompts Terry to mention that he actually has sickle cell anemia. Jake, not having the disease, is curious to learn more and asks Terry to explain more about it. But I can use this background: Another example of incomplete dominance is with sickle cell anemia, a disease in which a blood protein called hemoglobin is produced incorrectly. This causes the red blood cells to have a sickle shape, making it difficult for these misshapen cells to pass through the smallest blood vessels. A person that is homozygous recessive ( ss ) for the sickle cell trait will have red blood cells that all have the incorrect hemoglobin. A person who is homozygous dominant ( SS ) will have normal red blood cells. What is an answer for this question: Which person is homozygous dominant for the sickle cell trait?
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Answer: Jake

I have a new situation: In sub-Saharan Africa there are two predominant groups of antelope present. The first group of antelope, group A, have long necks and strong teeth. The second group of antelope, group B, have shorter necks and weaker teeth. Because of their longer necks and stronger teeth, the antelope from group A are more easily able to pick fruit and leaves from the tall trees in the region compared to antelope from group B. But I can use this background: The theory of evolution by natural selection was proposed at about the same time by both Charles Darwin and Alfred Russel Wallace, shown in Figure below , and was set out in detail in Darwin's 1859 book On the Origin of Species . Natural selection is a process that causes heritable traits that are helpful for survival and reproduction to become more common, and harmful traits, or traits that are not helpful or advantageous for survival to become more rare in a population of organisms. This occurs because organisms with advantageous traits are more "fit" to survive in a particular environment and have "adapted" to the conditions of that environment. These individuals will have greater reproductive success than organisms less fit for survival in the environment. This will lead to an increase in the number of organisms with the advantageous trait(s) over time. Over many generations, adaptations occur through a combination of successive, small, random changes in traits, and natural selection of those variants best-suited for their environment. Natural selection is one of the cornerstones of modern biology. What is an answer for this question: Which traits in the antelope will become more common over time, long necks and strong teeth or short necks and weak teeth?
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Answer:
long necks and strong teeth