Porifera Crossword

2. An internal bud that can remain dormant to later develop into a full sponge when there are better conditions.
6. The cell type that makes up the epidermis.
10. The most complex body form for sponges. It’s the extremely folded body form.
12. The class of sponges that have spicules that are 3-4 rayed and made of calcium carbonate.
13. The cell type that moves nutrients to all parts of the sponge.
15. A fibrous structure that acts as a “skeleton” for some sponges.
16. The structure that anchors the sponge to its substrate.
19. The outer layer of skin-like cells that protect the sponge.
20. A type of asexual reproduction where a piece of the sponge detaches from the parent sponge.

1. The class of sponges with the most diversity. They contain spongin, and their spicules are not 6 rayed or may be absent entirely.
3. The hollow center of the sponge where water travels on its way out of the sponge.
4. The name of the phylum that contains sea sponges.
5. The cell type that has a flagellum to circulate water through the sponge.
7. The class of sponges known as the “glass” sponges. Their spicules are 6 rayed and made of silica.
8. The simplest body form for sponges. It’s just a tube.
9. A somewhat complex body form for sponges. It’s the tube with the folds at the edges.
11. The jelly-like extracellular matrix that fills the space between the cells of a sea sponge.
14. The pores in the epidermis that allow water to enter the sponge.
17. Needle-like structures that act as a “skeleton” for some sponges.
18. The opening at the end of the sponge where water exits.