| Across |
|---|
| 1. | Subphylum Uniramia, segmented, uniramous appendages, terrestial and cryptics |
| 8. | Phylum Echinodermata, "Sea Cucumbers", greatly prolonged, 5 rows of tube feet, deposit feeders, internal madroporite |
| 12. | "Velvet Worms", very ancient group, living fossils, mostly tropical areas, internal segmentation |
| 18. | Phylum Hemichordata, "Acorn Worms", live in mud flats and are deposit feeders |
| 21. | Phylum Bryozoa, non-polymorphic, all freshwater, U-shaped lophophore, gelatinous colony, most primative |
| 22. | Phylum Arthropoda, Subphylum Uniramia, 750,000 species, spiracles for respiration, flight |
| 23. | Phylum Arthropoda, Subphylum Uniramia, "Centipedes", active predators, scretes poison with maxillpedes |
| 24. | Phylum Brachiopoda, incomplete digestive tract, CaCO3 shell, Terebratella |
| 25. | "Phorons" all marine, worm-like, U-shaped gut |
|
| Down |
|---|
| 2. | "Moss Animals", Colonial, sessiles, mostly marine, polymorphic zooids in colony, no circulatory, no excretory, no respiratory |
| 3. | Phylum Arthropoda, Subphylum Crustacea, "Krill", marine, filter feeders, highest number in Anartica |
| 4. | Phylum Echinodermata, "Starfish", oral surface faces down, |
| 5. | Phylum Echinodermata, "Sea Lilies", oldest, most primative group, sessile and deep water, ossicles form stalk |
| 6. | Phylum Hemichordata, primative, worm-like, live in deep water in Sounthern Hemisphere |
| 7. | "Spiny-Skinned", 3 compartment coelom, pentamerous radial symmetry, internal skeleton, water vascular system |
| 9. | "Peanut Worms", all benthic marine, detritous feeders, no gass echange or circulatory system,similar to Annelids |
| 10. | "Arrow Worms", planktonic, active predators, hermaphroditic |
| 11. | Phylum Bryozoa, all marine species, circular lophophore, polymorhpic, chitonious zooecium |
| 13. | Phylum Brachiopoda, valves held by muscles, complete digestive tract, CaPO4 shells, Lingula |
| 14. | Phylum Echinodermata, "Sea Urchins", globular shapes, fused ossicles, spines for defense |
| 15. | "Lamp Shells", all marine, ancient group with 2 compartmental coelom |
| 16. | Phylum Echinodermata, "Brittle Stars", most diverse, smaller than starfish, no ambulacral groove, bursal sacs |
| 17. | Phylum Chordata, Subphylum Urochordata, "Sea Squirts", sessile, colonial marine |
| 19. | Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, mostly marine, well developed abdomen, 8 segments |
| 20. | Phylum Arthropoda, Subphylum Uniramia, "Millipedes", posses diplosegments and repugnantoral glands for defense |
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