Doctors studied the blood of 2 sisters, Ann and Julie. Ann had sickle cell anemia, Julie did not. Which sister was not homozygous dominant ( SS ) for the sickle cell trait?
Ans: Ann

Dan harvested lots of fruit and decided to candy some of them to preserve them. He left some fruit fresh for the family to enjoy. He candied apples, pears, plums, and quince. He didn't candy oranges, blueberries, apricots and peaches. Which fruit retained their quality longer, pears or peaches?
Ans: pears

Gill and Ann were two fellow botanists. Gill studied alpine tundras extensively, while Ann studied tropical forests. They both discovered very interesting facts about nature and plants. Which person learned more about high-mountain summits?
Ans: Gill

David was studying human history. He selected two specific eras of human history, era A and era B. Era A was before humans had invented agriculture. And, era B was after the invention of agriculture. He noticed that human societies had changed dramatically after the invention of agriculture. Did era B have higher or lower death rate than era A?
Ans: higher