Two brothers were born 20 years apart. Tom, the older brother, was 72, while Dan was 52 years-old. they got along pretty well. Which brother had a greater chance of developing cardiovascular diseases?
Ans: Tom

The specialists studied two groups of larvae. Group L displayed all kinds of mutations while group D didn't. Which group of larvae had fewer somatic mutations?
Ans: group D

City D's mayor wants to invite more businesses in the city. Three firms, firm A, firm B, and firm C, took advantage of this opportunity. Firm A does not require large initial costs, but firm B and firm C require large initial costs. Firm B managed to increase its market share, but firm C failed to increase its market share. Would firm B most likely fail or succeed in achieving a meaningful return on investment if they don't get a large number of customers?
Ans: fail

The explorers visited Galapagos 1 and Galapagos 2, both islands part of the same archipelago. Island 1 had experienced a drought in recent years. Both islands had populations of birds living there. Which island had more big-beaked birds survive?
Ans: Galapagos 1