Two researches studied adolescents during puberty. Tim studied males, while Dan studied females. Which researcher observed that growth and development of muscles occur toward the end of the growth spurt in height?
Ans: Tim

Two physicists studied the influence of kinetic energy on the environment. Will studied high temperature environments, while his pal Don studied cooler environments. Which person learned more about the influence of high temperature on the speed of matter particles?
Ans: Will

Ben studied allergies ever since he experienced an allergic reaction to pollen. His brother Frank had no interest in the subject whatsoever, he was more interested in engineering. Which person studied less about skin contact with oils in poison ivy?
Ans: Frank

Mary's lake was full of fish, the lake's environment was very healthy. Mary stopped fishing on this lake five years ago and maintained it properly. Jane's lake had high fish mortality both from fishing and pollution, and disease from overstocking. Which lake had a lower natural mortality?
Ans: Mary's