Across
- 1. Blood, invertebrates
- 4. Internal respiratory organ in arthropods
- 5. Circulation system of a wasp
- 8. White blood cell name
- 9. Source of 99% of energy for life
- 11. Energy released without oxygen
- 13. Blood, vertebrates
- 16. An organ component of the circulatory system
- 17. Describes ventillation of fish gills
- 18. Describes the pressure of buccal pump (frogs)
- 19. Organ which assists in expanding ribs
Down
- 2. Internal vascular cavity of terrestrial creatures
- 3. One name for blood cell fragments
- 6. Red blood cell name
- 7. Energy released with oxygen
- 10. Describes the pressure of lungs
- 12. Unique trait of vertebrate circulatory system
- 14. Air reaches internal parts through tubes, supplies air to cells directly
- 15. Circulation system of a frog