*Question*
Q: In biology, what is required for ecosystems to survive? Choices: - helium - space - minerals - energy A:
**Answer**
energy

*Question*
Q: Who built the first telescope? Choices: - newton - brahe - copernicus - galileo A:
**Answer**
galileo

*Question*
Q: What kind of potentially harmful compounds can barbecuing food create? Choices: - mutagens - triglycerides - enzymes - carcinogens A:
**Answer**
carcinogens

*Question*
Q: What term is used to describe a cross between two individuals that have different traits? Choices: - assimilation - fraternization - purebreed - hybridization A:
**Answer**
hybridization