HYGIENE AND CELL

123456789
Across
  1. 3. well defined nucleus
  2. 4. single celled organism
  3. 7. little organs
  4. 9. tooth disorder
Down
  1. 1. head-lice
  2. 2. a natural scavenger housefly
  3. 5. spoils habit
  4. 6. large vacuoles
  5. 8. improves circulation of the blood