Across
- 1. A type of invertebrate animal that is a member of the phylum cnidaria.
- 6. Microscopic whip-like structures that help cells move through liquids.
- 8. A genus of small, tube shaped calcareous sponges belonging to the family sycettidae.
- 9. small openings in the body of an animal or in organisms within the body.
- 10. The central cavity of a sponges body.
- 13. Having both male and female reproductive organs in the same individual, or being hermaphroditic.
- 14. A large opening that forms the excretory tract of the sponge.
- 17. A small needle like structure that acts as a skeletal element in some invertebrates such as sponges and corals.
- 18. Free swimming larval form of cnidarians.
- 19. Anything associated with or occurring on the bottom of a body of water.
- 21. A form of asexual reproduction where a new organism develops from a small outgrowth or bud that grows on the body of the parent organism.
Down
- 2. Organisms that drift in water (or air) but are unable to actively propel themselves against currents or wind.
- 3. An animal or plant that has both male and female reproductive organs, structures, or tissue.
- 4. Having distinct individuals that are either male or female, and each individually produces either male or female gametes.
- 5. The immature stage of an animal that occurs after birth or hatching before the animal reaches adulthood.
- 7. A sponge or sponge larva with a simple canal system.
- 8. Attached directly by its base without a stalk or peduncle.
- 11. A type of sponge with a complex structure includes a thick body wall and a highly branched canal system.
- 12. Feeding by filtering out plankton or nutrients suspended in the water.
- 15. The free swimming, bell shaped body form of a cnidarian.
- 16. A flexible, protein based material that makes up the body wall of sponges and gives them their flexibility.
- 20. Having the ability or property of contracting or shrinking.