Q: What is the fundamental unit of structure and function in all living organisms? Choices: - the spinal cord - the backbone - the vessels - the cell A:
the cell

Q: What is it called when the soils of the arctic tundra remain in a perennially frozen state? Choices: - concentrated freeze - permafreeze - glacial domination - permafrost A:
permafrost

Q: Light from a distant galaxy can travel different paths to the earth because it is bent around an intermediary galaxy by what? Choices: - radiation - strength - variation - gravity A:
gravity