Lesson 6

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Across
  1. 1. Fat
  2. 4. membrane
  3. 6. Mouth or opening
  4. 9. Cartilage
  5. 10. Kidney
  6. 11. Nail, claw
Down
  1. 2. Gate
  2. 3. mass, tumor or swelling
  3. 4. Muscle
  4. 5. tube
  5. 7. Tree, branching (as in nervous system)
  6. 8. Voice, sound