Across
- 6. Two bean shaped organs
- 7. an organism which produces it's own food
- 8. connective tissue that has a matrix
- 11. breaks down food
- 12. single celled organisms
- 15. the bag that holds urine till it is excreted
- 18. a fibrous connective tissue which connects a muscle and the bone
- 20. happens in the presence of oxygen
- 21. An organ helpful in filter feeding of heterotrophs (Cnidaria) whose particles enter through intercellular digestion
Down
- 1. where the blood is purified
- 2. a common underwater plant
- 3. a tough elastic tissue around one's joints
- 4. present in chloroplast, and is a major setting for the light cycle
- 5. a constantly circulating fluid which provides nutrition to the body
- 9. a group of cells that have a similar structure and function together as an unit
- 10. calyx of a flower
- 13. Functional unit part of the kidney
- 14. live in fresh water and are in phylum Platyhelminthes
- 16. protect the middle covering of the fatty layer present in the kidney
- 17. a response to an internal or external stimulus
- 19. system A system which sends signals through neurons present in the nerve cells