Q: In what organ does pepsin help break down proteins? Choices: - kidney - liver - skin - stomach A:
stomach

Q: What forms when oceanic crust subducts into the mantle at convergent plate boundaries? Choices: - tsunamis - glaciers - coral - volcanic mountain ranges A:
volcanic mountain ranges

Q: Einstein developed a theory about how electromagnetic radiation can behave as both a wave and what else? Choices: - energy - bacteria - sound - particle A:
particle

Q: Differences in fitness among different members of a population can lead to what kind of selection? Choices: - fluid selection - subliminal selection - origin selection - natural selection A:
natural selection