Across
- 3. has two shells
- 5. Has ~30 legs
- 7. Flatworms use these to detect light
- 9. sessile cnidaria body plan
- 10. Many nematodes are ______
- 13. Sponge phylum
- 17. symmetry where body parts are joined around a central axis
- 18. contains venom for stinging
- 22. mollusk's toothlike "tongue"
- 23. transferred by mosquito bites; cause Elephantiasis
- 24. skeletal system supported by water
- 25. opening through which water exits a sponge
Down
- 1. porifera breathe using ______
- 2. Has ~150 legs
- 4. Sponges are _____ feeders
- 6. The most advanced type of mollusk
- 8. Mollusks have ____ bodies
- 11. Fragmentation is a form of ______ reproduction
- 12. muscular feeding tube that extends through a flatworm's mouth
- 14. Common name for platyhelminthes
- 15. Symmetry where two sides are the same
- 16. Less advanced animals can reproduce this way
- 19. motile cnidaria body plan
- 20. Organ used for reproduction by annelids
- 21. Arthropods are ____-footed animals
- 26. Used by mollusks for propulsion