Across
- 3. Over 60,000 pounds of sponges are harvested annually in Florida for this industry
- 5. term for animals that spend their entire lives anchored to a surface
- 7. Thanks to their endosymbiotes, many sponges are able to produce these chemicals as a defense mechanism
- 13. A sponge body forms around this hollow center
- 14. A type of fertilization where both oocytes and sperm are expelled into the water
- 18. They have irregular shapes like a protist called an amoeba
- 20. Sponges are able to restore lost parts in a process called
- 22. Sponges have been used as ________ tools for thousands of years
- 23. Flexible protein fibers
- 24. Microscopic Needlelike structures
Down
- 1. Internal buds and gemules are formed by this
- 2. Many animals such as crabs, nudibranches, mites and fish live as these(also known as parasites)in or on sponges
- 4. These are formed by archaocytes
- 6. All sponges get food this way, no matter what size
- 8. The opening at the top of the spongocoel
- 9. Sponge filtration can enhance water_______
- 10. A jellylike extracellular matrix
- 11. Many sponge species are brightly colored because of these, which are located in their dermal cells
- 12. What is it called when an animal only has a single cell layer
- 15. There are three main designs for the sponge body differing in the placement of the ___________
- 16. Sponges have this type of symmetry
- 17. Sponges are able to undergo this type of asexual reproduction
- 19. The body is permeated by numerous spores called _____
- 21. Sponges are also being researched to treat this type of disease, as well as many others
- 25. Thin, flat, skin-like cells that cover the exterior surface and some interior surface of a sponge