Across
- 1. the behavior or physiology of others of its species.
- 3. and the maintenance of life.
- 5. or entertainment rather than as a working animal livestock
- 7. innate and learned behaviors.
- 10. a chemical substance produced and released into
- 12. an animal that feeds on plants.
- 15. a regulatory substance produced in an organism
- 16. metabolically so only
- 19. animal kept primarily for a person's
- 21. in an organ or tissue.
- 23. rates.
- 24. an animal that feeds on flesh.
- 25. at the others expense.
- 26. environment by an animal especially a mammal or an insect
- 27. a substance that provides nourishment essential for
Down
- 2. the inherent inclination of a living organism
- 3. the study of heredity and the variation of inherited characteristics
- 4. a thing or event that evokes a specific functional
- 6. species (its host) and benefits of deriving
- 8. possible metabolic pathways operates at
- 9. transported in tissue fluids such as blood or sap to
- 11. laboratory animal.
- 13. an animal that eats food of both plant and animal
- 14. animals:
- 17. cells or tissues into action.
- 18. a particular complex behavior containing
- 20. an organism that lives in or on an organism or
- 22. specialization: