Vocabulary
Across
- 1. a large opening that forms the excretory tract of the sponge
- 5. plants have sperate male and female plants.
- 6. an arrangement of chouancytes around a central cavity that directly communicates with the osculum
- 7. attached directly by its base without a stalk or peduncle.
- 9. plants are plants that have both male and female sexual organs or flowers
- 12. microscopic hair-like structures involved in the locomotion of a cell.
- 13. a minute slender pointed usually hard body
- 14. is usually microscopic, often less than one inch in length, but they also include larger species like some crustaceans and jellyfish
- 15. anything associated with or occurring on the bottom of a body of water
- 17. can withstand movements of water and changes in tides
- 18. valves to allow fluid exchange
- 21. having or concerned with the power or property of contracting
Down
- 2. a sponge of the most complex structure
- 3. one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria
- 4. sub-group of suspension feeding animals that feed by straining suspended matter and food
- 8. Spongin is the flexible material that makes up the body wall of the sponge
- 10. being in an early stage of development
- 11. the condition of having both male and female reproductive organs
- 14. swimming or crawling larval type common in many species of the phylum Cnidaria
- 16. the internal cavity of a sponge discharging by way of the osculum
- 19. the juvenile form of an insect.
- 20. a projecting growth of tissue from a surface in the body, usually a mucous membrane