Question: Q: What are non-renewable sources of energy that produce environmental damage? Choices: - crop fuels - sunlight - wind - fossil fuels A:
Answer: fossil fuels

Question: Q: What system transports many substances to and from cells throughout the body? Choices: - nutritional - physiological - circulatory - cardiovascular A:
Answer: cardiovascular

Question: Q: Nonflowering vascular plants have three basic types of leaves: microphylls, fronds, and what other type? Choices: - molds - tubes - stems - needles A:
Answer:
needles