Question: I have a new situation: Doctor Brown examined two groups of patients: Group O, with members over 65, and group P, with members under 65 years of age. The study was about the effects on aging on the human body. But I can use this background: Old age begins in the mid-60s and lasts until the end of life. Most people over 65 have retired from work, freeing up their time for hobbies, grandchildren, and other interests. Stamina, strength, reflex time, and the senses all decline during old age, and the number of brain cells decreases as well. The immune system becomes less efficient, increasing the risk of serious illnesses such as cancer and pneumonia. Diseases such as Alzheimer's disease that cause loss of mental function also become more common. What is an answer for this question: Which group has fewer people with declining stamina?
Answer: group P

Question: I have a new situation: Andrew is thirsty and wants some cold water. He puts a bottle in the freezer but leaves it in too long so it freezes. Being impatient he then takes the bottle and runs it under soe hot water for a few minutes. But I can use this background: Changes of state from solid to liquid and from liquid to gas occur when matter gains energy. The energy allows individual molecules to separate and move apart from one another. It takes more energy to bring about these changes of state for polar molecules. Although hydrogen bonds are weak, they add to the energy needed for molecules to move apart from one another, so it takes higher temperatures for these changes of state to occur in polar compounds. This explains why polar compounds have relatively high melting and boiling points. The Table below compares melting and boiling points for some polar and nonpolar covalent compounds. What is an answer for this question: Will the water molecules lose energy or gain energy when put in the freezer?
Answer: lose

Question: I have a new situation: Two cousins went for a blood test. Tim found out he had hemophilia, while John was normal. Tim had to start taking medication. But I can use this background: Hemophilia is the name of a group of hereditary diseases that affect the body's ability to control blood clotting. Hemophilia is caused by a lack of clotting factors in the blood. Clotting factors are normally released by platelets. Since people with hemophilia cannot produce clots, any cut can put a person at risk of bleeding to death. The risk of internal bleeding is also increased in hemophilia, especially into muscles and joints. This disease affected the royal families of Europe. What is an answer for this question: Which cousin had a decreased risk of bleeding into joints?
Answer:
John