Across
- 3. No distinct structure in shape
- 4. solution
- 5. Nucleus
- 8. Organism that can live without oxygen
- 9. Organism that can grow in oxygen
- 10. White blood cell that protects the body against infections
Down
- 1. tartar control or anit-calculus
- 2. Mineral that contains calcium and phosphate
- 6. Framework
- 7. Tartar
- 8. No cells