Across
- 2. Protein-based material holding spicules together
- 4. Individuals having both male and female reproductive organs
- 6. The main opening?mouth of a sea sponge
- 8. Organisms with both male and female reproductive organs
- 13. Central cavity of a sea sponge
- 16. Complex, highly organized sea sponge body type
- 17. Organisms that strain water to capture food particles
- 18. Immature stage of an animal, often differing from adults
- 19. Asexual reproduction method where new individuals grow from parent's body parts
- 20. organisms living on or near the seafloor
Down
- 1. fixed,usually sessile, cnidarian body form
- 2. needle-like skeletal structures in sea sponges
- 3. Animals attached to a surface, unable to move
- 5. free-floating, bell-shaped cnidarian body type
- 7. free-swimming, flat, ciliated larval stage of cnidarians
- 9. Small pores in sea sponges for water entry
- 10. Simplest type of a sea sponge body type
- 11. Whip-like structures for movement or sensing
- 12. Organisms with separate male and female individuals
- 14. Small,usually microscopic, drifting aquatic organisms
- 15. Cells or tissues able to shorten and tighten