Q: Q: What kind of reaction is a reaction in which two or more substances combine to form a single new substance? Choices: - power reaction - compounding reaction - chemical reaction - combination reaction A:
A: combination reaction

Q: Q: What happens when antibodies are transferred to a person who has never been exposed to the pathogen? Choices: - acquired immunity - active disease - allergic reaction - passive immunity A:
A: passive immunity

Q: Q: Archaeans produce what kind of gas as a waste product? Choices: - sulfide - carbon monoxide - carbon dioxide - methane A:
A: methane

Q: Q: Prior to birth, the lungs are filled with amniotic fluid, mucus, and what else? Choices: - blood - plasma - air - surfactant A:
A: surfactant