CFU/Day 1: Animal Crossword Puzzle Creation Due Sunday by 11:59pm Points 100

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Across
  1. 3. Bladder A gas-filled sac in bony fish used to maintain buoyancy.
  2. 9. An animal without a backbone.
  3. 10. Symmetry A body plan with two mirrored halves.
  4. 11. A body plan with no balanced or mirror-image shape.
  5. 15. The free-swimming, bell-shaped life stage of a cnidarian.
  6. 20. Animals that generate their own body heat internally.
  7. 21. An internal skeleton or supporting framework.
Down
  1. 1. A firm, flexible connective tissue.
  2. 2. Eggs Eggs with specialized membranes that allow for development on land.
  3. 4. An animal with a backbone or spinal column.
  4. 5. Vascular System A system of fluid-filled tubes used by echinoderms for movement.
  5. 6. An organism that possesses both male and female reproductive organs.
  6. 7. Animals that rely on external environment heat to regulate body temperature.
  7. 8. The process of shedding an old exoskeleton to grow a new one.
  8. 12. Glands Organs in female mammals that produce milk for their young.
  9. 13. An organ that provides oxygen and nutrients to a fetus.
  10. 14. Asexual reproduction where a new organism grows as an outgrowth of the parent.
  11. 16. A hard protective structure on the outside of the body.
  12. 17. Living on or in the bottom of a body of water.
  13. 18. Symmetry A body plan where parts are arranged around a central axis.
  14. 19. The stationary, tube-like life stage of a cnidarian.