Across
- 3. a nonliving disease/that make us sick
- 6. species that are best suited to their environment
- 7. a new organisms produced by 1 or 2 parent organisms
- 9. the branch of biology
- 11. a wide-spread of a disease (world-wide)
- 13. Fission reproduction by which some single-celled organisms reproduce
- 14. maintaining health and sanitation
Down
- 1. a cell that a virus infects
- 2. organism(s) that harms host by taking nutrients
- 3. medicine that protects us from several diseases
- 4. a classification system that divides all living things
- 5. A VERY SMALL ORGANISM THAT CAN'T BE SEEN BY A NAKED EYE.
- 8. animal-like protists that eat other organisms
- 10. a large group of 1-celled organisms/sometimes causes disease
- 12. a condition that causes harm to a person's health