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  • Hand holding a small sea star (starfish) with it's stomach out.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 17 September 2009 Size: 3.7 MB Referencing Hub media

    A sea star can push its stomach out through its mouth when feeding. The stomach envelops the prey and then digestion juices are released. How could this external stomach be an advantage for sea stars?

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