Q: Q: What is the exchange of energy from one part of the universe to another called? Choices: - cold - temperature - humidity - heat A:
A: heat

Q: Q: What kind of compounds contain positively and negatively charged ions in a ratio that results in an overall charge of zero? Choices: - neutral compounds - zero charged compunds - zeronic ions - ionic compounds A:
A: ionic compounds

Q: Q: What type of organism, including sea stars and sand dollars, is named for their spiny skin? Choices: - mollusks - diatoms - chordates - echinoderms A:
A: echinoderms

Q: Q: Ecology is a major branch of what higher-level "classification" of science? Choices: - chemistry - physics - geology - biology A:
A: biology