Circulatory & Excretory System Crossword

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Across
  1. 1. The fluid that transports oxygen, nutrients, and wastes throughout the body
  2. 3. An organ that processes harmful substances and produces urea from protein waste
  3. 5. Tiny blood vessels where materials are exchanged between blood and body cells
  4. 7. Blood cells that carry oxygen throughout the body
  5. 8. Tubes that carry urine from the kidneys to the bladder
  6. 9. Blood vessels that carry blood away from the heart
  7. 10. Blood cells that help protect the body from infections
Down
  1. 1. A muscular organ that stores urine until it leaves the body
  2. 2. Organs that filter the blood and remove wastes to produce urine
  3. 4. Blood vessels that carry blood toward the heart
  4. 6. The muscular organ that pumps blood throughout the body
  5. 8. Liquid waste made by the kidneys