Question: Q: What are the tiny sacs in the lungs where gas exchange takes place? Choices: - bronchi - ganglion - cilia - alveoli A:
Answer: alveoli

Question: Q: Copper oxide is a result of what two substances mixing? Choices: - copper and gas - metal and oxygen - crystal and oxygen - copper and oxygen A:
Answer: copper and oxygen

Question: Q: As adults, amphibians are completely _______, meaning they feed on other animals. Choices: - herbivorous - monogamous - omnivorous - carnivorous A:
Answer:
carnivorous