Across
- 2. grows out of your skin, often seen on head of humans
- 4. thin layering of tissue on the outer part of living beings
- 6. works with (starts with letter "C")
- 7. works with (starts with letter "D")
- 8. has cuticles
- 9. example: sweat ___
Down
- 1. works with (starts with letter "N")
- 3. works with (starts with letter "I")
- 5. system what this crossword is about