Across
- 2. large opening at the top of the sponge to let the material out
- 7. creates energy in its own body
- 8. flexible boundary of a cell used to regulate material into and out of a cell
- 10. does not move
- 12. hairlike structure that waves about and creates currents and movement
- 14. cells that filter the nutrients using mucus. flagella are attatched here
Down
- 1. cell that has a nucleus and other organelles
- 3. obtains energy from outside sources
- 4. cells that move and transport nutrients and sperm
- 5. can move to find food
- 6. sharp rigid structures for support
- 7. no body cavity
- 9. small openings along the sponge that let material into the sponge
- 11. rigid outer boundary of a cell used for support and protection
- 13. no nucleus