CFU/Day 1: Animal Crossword Puzzle Creation

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Across
  1. 2. A body plan where left and right sides are mirror images.
  2. 5. A flexible, supportive tissue found in joints and certain skeletal structures.
  3. 9. Eggs with protective layers that allow development outside of water.
  4. 10. A body plan that cannot be divided into matching halves.
  5. 11. An organ that connects a developing offspring to its mother, providing nutrients and oxygen.
  6. 12. An animal with a backbone or spinal column.
  7. 15. A hard, protective outer layer supporting an animal’s body.
  8. 16. Able to maintain a constant body temperature through internal processes.
  9. 20. Organs that produce milk to feed offspring.
Down
  1. 1. An organism that possesses both male and female reproductive structures.
  2. 3. A network of fluid-filled tubes used for movement and feeding in some marine animals.
  3. 4. An internal framework that supports and protects the body.
  4. 6. An organ that helps aquatic animals maintain buoyancy.
  5. 7. An animal lacking a backbone or spinal column.
  6. 8. A body plan where parts are arranged evenly around a central axis.
  7. 13. Relating to life at the bottom of a body of water.
  8. 14. Relying on external sources to regulate body temperature.
  9. 17. A free-swimming, bell-shaped life stage of some aquatic creatures.
  10. 18. A form of reproduction where a new organism grows directly from the parent.
  11. 19. A tube-shaped, often stationary life stage of certain aquatic animals.
  12. 21. The process of shedding an outer layer to allow growth.