Invertebrates

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Across
  1. 3. this word means that the animal does not move place to place
  2. 4. animal that eats only meat
  3. 6. an adaptation that is of the body (structure) of an animal
  4. 11. an animal that regulates their temperature with its environment
  5. 15. an animal that maintains a nearly constant body temperature
  6. 16. mollusks that have 2 shells
  7. 18. animal that is a cephalopod, using an ink-like chemical that helps it escapes predators
  8. 19. examples are sea stars, sea urchins
  9. 20. examples are spiders, scorpions, and ticks
  10. 21. an adaptation that the organism does
  11. 22. animal that lives in water and vary in size; examples are shrimp, crabs, lobsters
  12. 25. animal that has 3 body segments and is the largest arthropod group
Down
  1. 1. animal without a backbone
  2. 2. have lungs, usually one shell
  3. 5. insects have one pair of these on their head
  4. 7. this animal breathes through its skin
  5. 8. a word for being made up of many cells
  6. 9. animal that cannot make its own food
  7. 10. animal that has jointed appendages and an exoskeleton
  8. 12. help sponges defend against predators
  9. 13. have tentacles and uses a form of jet-propulsion
  10. 14. filter feeders through their pores; uses collar cells to filter
  11. 17. animal that eats plants
  12. 23. insects have 3 segments: thorax, ___, and head
  13. 24. arthropods have ___ appendages to move