Q: What kind of family is haumea part of? Choices: - eoan family - a moclobemide family - orbital family - a collisional family A:
a collisional family

Q: What is water vapor density known as? Choices: - density - thickness - ambiance - humidity A:
humidity

Q: Q: Tropomyosin is a type of what, that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin? Choices: - enzyme - bacteria - amine - protein A:
A: protein

Question: Q: A major diversification of what animal group occurred about 50 million years ago, possibly spurred by worldwide climate change? Choices: - reptiles - amphibians - insects - mammals A:
Answer: mammals

*Question*
Q: What is the amount of energy required to begin a chemical reaction known as? Choices: - decomposition energy - reaction energy - positive energy - activation energy A:
**Answer**
activation energy

Q: Q: What occurs as a result of the discharge of static electricity? Choices: - thunder - clouds - drought - lightning A:
A: lightning