Across
- 5. a branch of science that deals with living
- 9. a taxonomic class of bacteria
- 10. a geographic area where plants animals and
- 11. the external form contours or outline of
- 12. the surroundings or conditions in which a
- 13. an activity or purpose natural to or intended
Down
- 1. to a living thing that has an organized
- 2. affected by physical or mental illness
- 3. arrange a group of people or things in
- 4. a particular abnormal condition that
- 6. an organism that causes disease
- 7. a structural layer surrounding some types of
- 8. small single-celled organisms