Q: What are the three most common elements in the air we breathe? Choices: - oxygen, nitrogen, H20 - nitrogen, argon, hydrogen - argon, oxygen, hydrogen - nitrogen, oxygen and argon A:
nitrogen, oxygen and argon

Q: Bacteria are what kind of cell? Choices: - protists - blood - eukaryotes - prokaryotes A:
prokaryotes

Q: Q: In winter, water does what, becoming solid and causing hoses to rupture and engine blocks to crack? Choices: - crystallizes - shrinks - fractures - freeze A:
A: freeze

Question: Q: What is the hollow sac like organ that stores urine until it is excreted? Choices: - kidney - ureter - tumor - bladder A:
Answer: bladder

*Question*
Q: What type of amplitudes and wavelengths avoid detection in deep water? Choices: - high and long - high and wide - low and wide - low and long A:
**Answer**
low and long

Q: Unlike plants, animal species rely almost exclusively on what type of reproduction? Choices: - pollination - multiplication - regeneration - sexual reproduction A:
sexual reproduction