Problem: A team of archaeologists studied two human settlements, village Alpha from about 11000 years ago and village Beta, which existed 9000 years ago. Village Beta was bigger, because their inhabitants already knew about and practiced agriculture. Which village had a smaller food supply?

A: Alpha

Problem: Pete and Mike were two brothers. Pete had no health problems, while Mike inherited the sickle cell trait. Mike had adjacent health problems. Which brother had molecules of hemoglobin that aggregate?

A: Mike

Problem: Mike is studying the predator prey relationship. He is specifically studying three species, species A, species B, and species C. Species A is a predator; species B is the prey; and species C is a plant species that species B lives on. Mike now needs to figure out how the predator prey relationship balance the ecosystem. If species A population decrease, would the population of species B increase or decrease?

A: increase

Problem: Lena is a grade school student studying the periodic table for homework. She has to choose two elements from the table and write a couple paragraphs about them and their characteristics. She takes two darts and throws them at the periodic table to decide which ones to use. The darts land on Zerpine and Dradane. Zerpine may be further down the table than Dradane, but they are both in the same column. Which element has less electron shielding?

A:
Dradane