最終更新日:2024/08/02
The coelenteron is a fluid-filled cavity in the body of a coelenterate.
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The coelenteron is a fluid-filled cavity in the body of a coelenterate.
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The coelenteron is a fluid-filled cavity in the body of a coelenterate.
The coelenteron is a fluid-filled cavity in the body of a coelenterate.