Invertabrates

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Across
  1. 1. burrowing invertebrate with no limbs
  2. 4. a single spiral shell animal
  3. 5. simple invertebrate animals that live in aquatic habitats
  4. 6. hard shell and several pairs of legs, which usually lives in water.
  5. 7. soft, unsegmented body and a flame cell system
  6. 9. minute water animals with segmented bodies and four pairs of unsegmented legs,
  7. 11. gelatinous umbrella-shaped bell with tentacles
  8. 12. small crawling insects that live in large groups.
  9. 15. extinct marine arthropods having the body divided by two furrows into three parts,
  10. 18. organisms that have bodies full of pores and channels allowing water to circulate through them
  11. 20. invertebrate animals with jointed legs, a segmented body, and an exoskeleton
  12. 21. wormlike animals having long, segmented bodies
  13. 22. a long, thin creature with a lot of legs
  14. 24. microscopic invertebrate animals found mostly in fresh waters
  15. 25. an insect with long back legs that jumps high into the air
Down
  1. 2. an animal with a soft body and hard shell
  2. 3. mollusks having one-piece, straight or spiral shells,
  3. 6. characterized by stinging cells and a saclike body cavity
  4. 8. A red sea creature with a flat round body(claws)
  5. 10. often parasites of animals and plants, with long, cylindrical, unsegmented bodies
  6. 13. minute water animals that form branching, mosslike colonies
  7. 14. a flat, star-shaped creature
  8. 16. a kind of shellfish which can be eaten.
  9. 17. marine animals with a water-vascular system, and usually with a hard, spiny skeleton
  10. 19. a sea creature with a long soft body with tenticles
  11. 23. an eight-legged predatory arachnid