Across
- 2. an animal that feeds on flesh
- 4. specialized metabolically so only a portion of possible metabolic pathways operates at high rates
- 7. the inherent inclination of a living organism towards a particular complex behavior
- 9. a CHEMICAL substance produced and released into the environment by an animal...
- 10. An animal primarily for a persons company or entertainment
- 12. A thing or event that evokes a specific functional reaction in an organ or tissue
Down
- 1. A REGULATORY substance produced and released into the environment by an animal...
- 3. an animal that feeds on plants
- 5. an animal that eats food of both plants and flesh
- 6. a substance that provides nourishment essential for growth
- 8. The study of heredity and the variation of inherited characteristics
- 11. an organism that lives in or on an organism of another species