Vocab

4. Having both male and female reproductive organs in the same individual.
6. Relating to the bottom of a body of water, such as the ocean floor.
9. Having separate male and female individuals in a species.
12. The most complex body plan of a sponge, characterized by a highly branched system of chambers.
13. A free-swimming, bell-shaped form of cnidarian with tentacles hanging down.
14. A flexible protein substance that forms the skeletal framework of certain sponges.
16. Organisms possessing both male and female reproductive organs.
19. A more complex body plan of a sponge, characterized by folded walls and multiple chambers.
20. Microscopic organisms that drift or float in aquatic environments.
22. The larval form of cnidarians, typically free-swimming.

1. The central cavity of a sponge.
2. An organism that feeds by straining small particles from the surrounding water.
3. Capable of contracting or shrinking in size.
5. Attached or fixed in one place; not moving.
7. A form of asexual reproduction in which offspring develop from outgrowths on the parent organism.
8. An opening in a sponge through which water is expelled.
10. Whip-like appendages used for movement in some microorganisms.
11. A cylindrical, sessile form of cnidarian with a mouth surrounded by tentacles.
15. Pores in a sponge’s body wall through which water enters.
17. Small, needle-like structures found in the body of some sponges.
18. The simplest body plan of a sponge, characterized by a single central cavity.
21. The immature form of many animals that undergo metamorphosis.