*Question*
Q: John dalton thought that what unit, which means "indivisible", could not be divided into smaller, simpler particles? Choices: - electron - nucleus - neutron - atom A:
**Answer**
atom

*Question*
Q: Where are sponges most likely anchored to? Choices: - sea floor - sand - beaches - reef or rock A:
**Answer**
reef or rock

*Question*
Q: Tuataras, lizards, and snakes are members of what subclass of reptiles? Choices: - dinosaurs - arthropods - staurikosaurus - lepidosaurs A:
**Answer**
lepidosaurs

*Question*
Q: What is a diagram that shows a single way that energy flows throughout an ecosystem? Choices: - fuel chain - dependent chain - water cycle - food chain A:
**Answer**
food chain