Q: Q: Because they control many cell activities - as well as being controlled by feedback mechanisms - what substances are very important for homeostasis? Choices: - acids - proteins - enzymes - hormones A:
A: hormones

Q: Q: What hypothetical link between development of herbivores and plant defenses is observed in nature, for instance in seeds that are unsavory to animals? Choices: - interconnection - abjection - natural selection - coevolution A:
A: coevolution

Q: Q: What type of energy is the energy of moving matter? Choices: - dynamic energy - residual energy - potential energy - kinetic energy A:
A: kinetic energy

Q: Q: What are the only amphibians without legs? Choices: - newts - crustaceans - porifera - caecilians A:
A: caecilians