Question: Q: What are the only organelles that prokaryotic cells have? Choices: - nuclei - chloroplasts - fibroblasts - ribosomes A:
Answer: ribosomes

Question: Q: Biological macromolecules are organic, which means that they must contain what? Choices: - hydrogen - aluminum - oxygen - carbon A:
Answer: carbon

Question: Q: The most common substance on earth, water, is primarily present in what state? Choices: - gas - solid - freshwater - liquid A:
Answer:
liquid