Invertebrates

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Across
  1. 1. phylum of bovine tapeworm
  2. 5. this animal looks like gelatin
  3. 6. it is a gastropod mollusc with a shell
  4. 9. snails use this organ to grind food
  5. 10. an edible bivalve mollusc
  6. 11. very primitive animals, one of them is hero of cartoon about Bikini Bottom
  7. 13. this worm looks like hair or thread in water, but its larva parasitizes insects
  8. 15. living fossil (crustaceans)with blue blood
Down
  1. 2. small animals that form a special crown of cilia around their mouth
  2. 3. this animal is very spiny and has an Aristotelian lantern
  3. 4. this arthropod has 40 legs
  4. 7. molluscs that don't have head and usually feed by filtration
  5. 8. this animal belongs to Deuterostomia, and it has five-ray symmetry
  6. 9. phylum of ascarididae
  7. 12. very expensive edible bivalve clam
  8. 14. this black edible bivalve mollusk has an attached lifestyle