Invertebrates

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Across
  1. 2. No symmetry; body cannot be divided into matching parts
  2. 6. An animal with a backbone
  3. 9. The phylum that includes sponges
  4. 10. Made of more than one cell
  5. 12. Soft-bodied animals like snails, clams, and octopuses
  6. 14. The phylum with jellyfish, sea anemones, and corals; has stinging cells
  7. 16. Stays attached in one place; does not move
  8. 18. An animal without a backbone
  9. 19. An organism that must eat other organisms for food
Down
  1. 1. The second level of classification below kingdom
  2. 3. Marine animals like sea stars and sea urchins with radial symmetry
  3. 4. Body symmetry where parts are arranged around a central point
  4. 5. Segmented worms like earthworms and leeches
  5. 7. The domain that includes all organisms with cells that have a nucleus
  6. 8. Simple worms with flat bodies
  7. 11. Worms that have a tube-like body and two body openings
  8. 13. Body symmetry where the left and right sides are mirror images
  9. 15. How an animal’s body can be divided into matching parts
  10. 17. The largest phylum; includes insects, spiders, and crabs