Across
- 5. another word for living things
- 8. many cells
- 9. the scientific study of how organisms are classified
- 10. the maintenance of stable internal conditions to stay alive
- 14. one cell
- 16. an organism that lives on or in a host organism
- 18. a combination of chemical reactions
- 19. single celled organism that lacks a membrane
- 20. an action or change in behavior
Down
- 1. any change or signal in the environment that can make organism repeat
- 2. an organism that cannot make its own food
- 3. the mistaken idea that living things arise from other living things
- 4. single celled prokaryotic microorganisms
- 6. an organism that can make its own food
- 7. a eukaryotic organism that is not an animal
- 11. basic unit of structure and function of living things
- 12. the process of grouping things based on their similarites
- 13. infections agents
- 15. active acquired immunity to a particular disease
- 17. a group of similar organisms that can mate