Q: Background: Saturated hydrocarbons are given the general name of alkanes . The name of specific alkanes always ends in - ane . The first part of the name indicates how many carbon atoms each molecule of the alkane has. The smallest alkane is methane. It has just one carbon atom. The next largest is ethane, with two carbon atoms. The chemical formulas and properties of methane, ethane, and several other alkanes are listed in Table below . The boiling and melting points of alkanes are determined mainly by the number of carbon atoms they have. Alkanes with more carbon atoms generally have higher boiling and melting points. Paragraph: Two brothers studied chemistry in school. Ted studied alkanes, while Ned studied cycloalkanes. They both received grade A. Given the paragraph above, please answer correctly the following question: Which brother learned more about the boiling points of alkanes?
A: Ted

Q: Background: Communication is any way that animals share information. Many animals live in social groups. For these animals, being able to communicate is essential. Communicating increases the ability of group members to cooperate and avoid conflict. Communication may help animals work together to find food and defend themselves from predators. It also helps them find mates and care for their offspring. In addition, communication helps adult animals teach the next generation learned behaviors. Therefore, communication generally improves the chances of animals surviving and reproducing. Paragraph: Manny and Dean were two classmates. They had to prepare for a school project so they decided to learn about animals. Manny studied animal communication, while Dean studied animal feeding patterns and nutrition. Given the paragraph above, please answer correctly the following question: Which student learned less about animals working together to defend themselves from predators?
A: Dean

Q: Background: Many respiratory diseases are caused by pathogens. A pathogen is an organism that causes disease in another organism. Certain bacteria, viruses, and fungi are pathogens of the respiratory system. The common cold and flu are caused by viruses. The influenza virus that causes the flu is pictured below ( Figure below ). Tuberculosis, whooping cough, and acute bronchitis are caused by bacteria. The pathogens that cause colds, flu, and TB can be passed from person to person by coughing, sneezing, and spitting. Illnesses caused by bacteria can be treated with antibiotics. Those caused by viruses cannot. Paragraph: Birch town was located 20 miles away from Free town. Birch town's population was affected by viral respiratory diseases, while Free town's population caught bacterial respiratory diseases. Given the paragraph above, please answer correctly the following question: Which town has fewer people that developed acute bronchitis?
A: Birch

Q: Background: Cancer is a disease that causes cells to divide out of control. Normally, the body has systems that prevent cells from dividing out of control. But in the case of cancer, these systems fail. Cancer is usually caused by mutations. Mutations are random errors in genes. Mutations that lead to cancer usually happen to genes that control the cell cycle. Because of the mutations, abnormal cells divide uncontrollably. This often leads to the development of a tumor. A tumor is a mass of abnormal tissue. As a tumor grows, it may harm normal tissues around it. Anything that can cause cancer is called a carcinogen . Carcinogens may be pathogens, chemicals, or radiation. Paragraph: Two sisters went to the doctor to get screened for cancer. Lisa had cancer, while her sister Beth didn't. Lisa was terrified, but her sister comforted her. Given the paragraph above, please answer correctly the following question: Which sister had a greater chance of developing a tumor?
A:
Lisa