Fish External Anatomy

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Across
  1. 2. near the front, especially situated in the front
  2. 5. technical term for gill cover
  3. 6. a gas-filled sac present in the body of many bony fishes
  4. 7. branch of science dealing with bodily structure
Down
  1. 1. further back in position; of or nearer the rear
  2. 3. of, on, or relating to the underside
  3. 4. of, on, or relating to the upper side or back