Question: Q: What type of microscope is used to see extremely small objects? Choices: - optical microscope - X-ray microscope - ultrasonic microscope - electron microscope A:
Answer: electron microscope

Question: Q: What happens to volume as the temperature increases? Choices: - volume fluctuates - volume decreases - volume is unchanged - volume increases A:
Answer: volume increases

Question: Q: What is essential for cellular respiration for all aerobic organisms? Choices: - nitrogen - water - carbon - oxygen A:
Answer:
oxygen