Marine Vocab Crossword Puzzle

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Across
  1. 1. referring to far below the surface of the body
  2. 4. have a body cavity located between the mesoderm and endoderm; specialized organs
  3. 7. cavity a digestive cavity where every cell is exposed to all stages of food digestion
  4. 9. animals with no body cavity; no organs, completely solid
  5. 10. a rigid external skeleton that encases the body of an animal
  6. 12. symmetry irregular in shape; no particular pattern and sometimes their shape depends on where they are growing
  7. 13. tail end of an animal
  8. 15. a group of tissues working together towards the same function
  9. 16. creates a front and a back
  10. 17. hollow ball of cells; bunch of cells /subdividing cells
  11. 21. a structure that is closest to a central point
  12. 23. a structure that is the farthest from a central point
  13. 24. system a group of organs working together towards the same function
  14. 25. plane creates a right and left side
  15. 26. middle layer of embryonic tissue in animals from which the skeleton and muscles circulatory, and respiratory tissues develop; humans are protected by mesoderm (muscle); most complex
  16. 28. have a true coelom, a body cavity located entirely within the mesoderm
  17. 29. refers to the middle of a structure/organism
Down
  1. 2. is composed of a hard material, such as bone, embedded within an animal
  2. 3. a fluid filled space found between the body wall and the digestive tract
  3. 5. midline (middle) of the body dividing it into left and right sides
  4. 6. plan an animal's shape, symmetry, and internal organization
  5. 8. the back or topside of an animal
  6. 11. in animals, the outer layer of embryonic tissue from which the skin and nervous system develop
  7. 14. symmetryhave body parts arranged around a central axis
  8. 16. in bilaterally symmetric animals, the development of the head end with a concentration of nerves and sensory structures
  9. 18. refers to the sides of a structure/organism
  10. 19. head end of an organism
  11. 20. symmetry arrangement of body parts so there are distinct left and right halves that mirror each other
  12. 22. refers to a structure that is below another structure in the body
  13. 27. inner layer of embryonic tissue which the digestive organs and track develop in animals