animal crossword

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Across
  1. 1. Vascular System A water filled system used by sea stars for movement
  2. 7. A jellyfish shaped body form that swims freely
  3. 8. Relies on the environment to regulate body temperature
  4. 9. To shed an old outer covering
  5. 12. Living on or near the ocean floor
  6. 13. Bladder An organ that helps fish control their depth
  7. 15. A tube-shaped animal attached to a surface
  8. 16. A skeleton inside the body
  9. 17. An animal with a backbone
  10. 19. An organism with male and female reproductive organs
  11. 20. An organ that supplies a developing baby with nutrients and oxygen
Down
  1. 2. Having no regular body shape
  2. 3. Able to keep a steady body temperature using internal heat
  3. 4. Reproduction where a new organism grows from the parent
  4. 5. An animal without a backbone
  5. 6. Flexible tissue found in joints and some skeletons
  6. 8. A hard outer covering that protects the body
  7. 10. Eggs Eggs that protect the developing embryo
  8. 11. Symmetry A body that can be divided into two equal halves
  9. 14. Glands Organs that produce milk for babies
  10. 18. Symmetry Body parts arranged around a central point