Across
- 3. first stomach compartment in ruminant
- 4. part of avian digestive system, grinds
- 6. polygastric digestive system
- 8. layer of skin closest to organs
- 12. brain and spinal cord
- 13. pumps blood around the body
Down
- 1. horse, rabbit, guinea pigs, hamsters
- 2. product of endocrine system
- 5. species with monogastric digestive system
- 7. barrier to viruses and bacteria
- 9. lymph nodes, cells, proteins, tissues, organs
- 10. affected by disease through diarrhea, poor appetite
- 11. made of nose, mouth, trachea, bronchi, lungs