One kind of fish, the hagfish, is considered an…

Discussion in 'Biology' started by Humanist, Apr 17, 2018.

  1. Humanist

    Humanist New Member

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    One kind of fish, the hagfish, is considered an invertebrate by scientists. Why is this fish an invertebrate whereas all other fish are vertebrates?
     
  2. Mckpvp

    Mckpvp New Member

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