Q: Brass and bronze are examples of what type of mixture composed of two or more elements, at least one of which is a metal? Choices: - halloid - compound - metalloid - alloy A:
alloy

Q: The distance of stars is measured in what terms, meaning the light takes many thousands of years to reach us? Choices: - light months - light decades - light hours - light years A:
light years

Q: The iron ion used to bind oxygen is on what type of "ring"? Choices: - DNA ring - petrarchan ring - reagent ring - porphyrin ring A:
porphyrin ring

Q: Linked genes are located on the same what? Choices: - genome - nucleolus - bacterium - chromosome A:
chromosome