Q: Answer the question

Which is a major organ of the nervous system?

A: brain

Q: Answer the question

Materials must pass through a cell's semi-permeable membrane in order for energy to be utilized. This process is called

A: diffusion.

Q: Answer the question

When bedrock in Massachusetts is examined, it often appears scraped and polished. Which of the following most likely caused the bedrock to appear scraped and polished?

A:
glacial movement