Q: Brown algae are important commodities for what? Choices: - reptiles - fish - parasites - humans A:
humans

Q: While smooth muscle tissue can regenerate from stem cells called pericytes, dead cardiac muscle tissue is replaced by what type of tissue? Choices: - Maximum - embryo tissue - neon tissue - scar tissue A:
scar tissue

Q: Q: What do you call the process of a solid becoming a liquid? Choices: - boiling - vaporizing - freezing - melting A:
A: melting

Question: Q: When matter recycles and changes state what does it gain or lose by doing so? Choices: - density - volume - fuel - energy A:
Answer: energy

*Question*
Q: The molecular formula is still c 4 h 10 , which is the same formula as? Choices: - chlorine - carbon hydroxide - propane - butane A:
**Answer**
butane

(Question)
Q: How many classes of biochemical compounds are there? Choices: - one - five - three - four A:
(Answer)
four