Across
- 3. Digestive system that has only two openings
- 9. Tissue made of living cells in a non-living matrix
- 10. Grass and meat eater
- 11. Crayfish, lobster, crab
- 12. Back of your throat
- 15. Tubes where gas exchange takes place in an animal
- 17. Small vein
- 18. Highly specialized tissue that is used for protection
- 19. Spiders have this kind of gills
- 20. by-product of photosynthesis is oxygen and ...
Down
- 1. Vascular tissue that moves water upward only
- 2. Ascaris, Trichinella, Pinworms, Hookworms
- 3. Meat eater
- 4. Sponge has this kind of symmetry
- 5. Small artery
- 6. Vascular tissue that moves dissolved organic molecules both up and down
- 7. Digestive system that has only one opening
- 8. Moving food throughout the body
- 13. Type of muscle tissue that moves food throughout our body
- 14. Sheet muscle
- 16. Single air sack