Problem: Write a question you would see in a school textbook.

Answer: What is the relationship between tissues and organs?

Problem: Write a question you would see in a school textbook.

Answer: Alex looked at an electric toothbrush that had a plug with three metal prongs. Why are these prongs made out of metal?

Problem: Write a question you would see in a school textbook.

Answer:
Living things are classified as producers or consumers according to