Ques: Q: The mean free path for a gaseous molecule will be hundreds of times the what of the molecule? Choices: - variation - weight - density - diameter A:
Ans: diameter

Ques: Q: Where does the majority of chemical digestion occur? Choices: - stomach - mouth - large intestine - small intestine A:
Ans: small intestine

Ques: Q: In resting neurons, the plasma membrane has many open potassium channels but few open of which other channels? Choices: - silicon - oxygen - sulfur - sodium A:
Ans: sodium

Ques: Q: The earth's biomes are categorized into two major groups named what? Choices: - icelandic and aquatic - aquatic and galactic - terrestrial and galactic - terrestrial and aquatic A:
Ans:
terrestrial and aquatic