Q: Q: What causes blood vessels to grow toward the tumour in cancer cells? Choices: - harnessing molecules - addressing molecules - communicating molecules - signaling molecules A:
A: signaling molecules

Q: Q: Rising air currents carry water vapor into what? Choices: - stratosphere - ionosphere - troposphere - atmosphere A:
A: atmosphere

Q: Q: Heterotrophs is another name for what group? Choices: - omnivores - autotrophs - producers - consumers A:
A: consumers

Q: Q: What are large glaciers that cover a larger area than just a valley? Choices: - icebergs - glacial continents - ice floes - ice caps A:
A: ice caps