Science Crossword Puzzle

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Across
  1. 2. ____ system What brings oxygen into the body and carbon dioxide out?
  2. 4. ____ system. The system that passes info from the brain to the body.
  3. 6. the immune system ________ the body against infection.
  4. 7. ____ system. Includes all the joints, muscles, and bones.
  5. 9. these glands make up part of the digestive system.
Down
  1. 1. what keeps the internal conditions of an organism stable?
  2. 3. builds proteins by connecting amino acids.
  3. 4. contains all genetic material.
  4. 5. jelly like substance that fills the cell.
  5. 8. The ____ ____ gives the plant cell shape, protection, and support.