Phylum Porifera #2
Across
- 3. being able to make both sperm and eggs
- 6. sponges can ___ lost or damaged parts
- 8. phylum to which sponges belong
- 10. free-swimming larva produced during sexual
- 11. sperm enter the sponge through these
- 12. adult sponges are ___ because they can't move
- 13. cells that secrete spicules
- 15. cells that secrete fibrous collagen
Down
- 1. another term for monoecious
- 2. kingdom to which sponges belong
- 4. cells that secrete spongin
- 5. sponge cells are ___ because they have a nucleus
- 7. cells that secrete large amounts of collagen
- 9. type of asexual reproduction that sponges use
- 13. hard portion of the sponge's 'skeleton'
- 14. sperm are released through the ___