Q: What is the largest artery in the body called? Choices: - carotid - subclavian - femoral - aorta A:
aorta

Q: In vascular plants, do primary roots grow downward or to the side? Choices: - to the side - neither - it depends - downward A:
downward

Q: Q: Are the majority of archaea chemotrophs or photosynthetic? Choices: - photosynthetics - neither - autotrophs - chemotrophs A:
A: chemotrophs

Question: Q: Quantum chromodynamics combines what property with quark theory? Choices: - mass - contrast - sound - color A:
Answer: color

*Question*
Q: Lymph vessels, like veins, have what objects that prevent the backflow of fluid? Choices: - pumps - pores - fibers - valves A:
**Answer**
valves

Q: What carries warm or cold water throughout the world's oceans? Choices: - gravity - pipes - earth rotation - ocean currents A:
ocean currents