Q: Q: Animals that live in groups with other members of their species are called what? Choices: - present animals - common animals - energetic animals - social animals A:
A: social animals

Q: Q: Exemplified by cesium, which ignites spontaneously in air, pure elements with a high metallic character tend to be very what? Choices: - radiactive - inactive - proactive - reactive A:
A: reactive

Q: Q: What do you call the regular changes in biology or behavior that occur in a 24-hour cycle? Choices: - cognitive rhythms - variable rhythms - sleep rhythms - circadian rhythms A:
A: circadian rhythms

Q: Q: What single-celled organism can be either a predator, decomposer, herbivore, or parasite in the food chain? Choices: - vertebrates - mites - Diatoms - protozoa A:
A: protozoa