Across
- 2. without definite shape or visible differentiation
- 6. not made up of or containing cells
- 8. functions to protect the body against infection and disease
- 9. live and grow in the presence of free oxygen
Down
- 1. crystalline mineral component of bones and teeth that contains calcium and phosphate.
- 2. grows in complete (or almost complete) absence of oxygen
- 3. a solution containing more of an ingredient that can be held in solution permanently
- 4. nucleus, focus, point of origin.
- 5. a surrounding framework
- 7. also referred to as “tartar”