Across
- 1. Father of evolution
- 4. Top portion of heart
- 5. Mrs. Dillon's daughter
- 8. Element vital to all animal life
- 9. Primary respiratory organ
- 10. Just above spinal cord
- 12. Back of brain
- 14. Organ that pumps blood
- 20. Speaking is _____
- 21. sensors indicating feelings
- 23. Waste of used oxygen
- 24. Front of brain
- 26. Aka windpipe
- 27. Makes breathing difficult
- 28. Thinker; "mind"
- 29. Act of bringing in air
- 30. Aka voicebox
Down
- 1. Relaxed phase of heart
- 2. Mystery of Mrs. Dillon's phone
- 3. Separates lungs from digestive organs
- 6. Low pressure vessel to heart
- 7. Pumping phase of heart
- 11. Full development of ___ sets us from apes
- 13. Smallest blood vessels
- 15. Relating to lungs
- 16. Heart beat is _____
- 17. Gateway of returning blood
- 18. Nervous tissue within spine
- 19. High pressure vessel away from heart
- 20. Bottom portion of heart
- 21. Brains unique specialized cells
- 22. Found on computers
- 25. Oldest domain of life
- 27. Path of all blood going to body