Across
- 1. unused nutrients
- 5. building block of all life
- 6. relating to, or caused by living organisms
- 8. something is unlikely to spread
- 10. widespread occurrence of an infectious disease
- 11. outbreak of a disease
- 12. something is likely to spread
- 13. organism that consists of more than one cell
- 16. dependent on another thing to live
- 17. another word for life form
Down
- 2. surroundings or conditions on a thing
- 3. a system of interlocking and interdependent food chains.
- 4. a biological community of interacting organisms
- 7. another word for sickness
- 9. vital for a cells survival
- 14. organism that consists of one cell
- 15. Not associated with or derived from living organisms