Q: What is the name for compounds that contain only carbon and hydrogen? Choices: - particles - carbohydrates - carbides - hydrocarbons A:
hydrocarbons

Q: Macrophages and dendritic cells are types of what" Choices: - amoena cells - supercapacitor cells - mast cells - phagocytic cells A:
phagocytic cells

Q: What type of vehicles is able to go to the deepest ocean floor? Choices: - off road vehicles - all-terrain vehicles - autonomous controlled airplanes - remote-control vehicles A:
remote-control vehicles