2026 biology talkshow:海洋中的水力工程師-棘皮動物門 (國中生物單元九)

介紹棘皮動物門的生物特性，指出其作為後口動物，在演化親緣關係上與人類比昆蟲更為接近。解釋棘皮動物特殊的內骨骼系統，說明其表皮下的鈣質骨板如何延伸成具防禦功能的「棘」。此外，該類群擁有獨特的水管系統與變形膠原組織，能以液壓驅動管足並瞬間改變身體硬度。詳述包含海星、蛇尾、海膽、海參及海百合等五大綱在台灣海域的代表物種與生存習性。最後警示在2026年當前的環境下，海洋酸化與生態失衡正嚴重威脅這群古老生物的生存，呼籲大眾關注海洋保育。聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini) 測驗網址   https://gemini.google.com/share/9ea93361a488 Powered by Firstory Hosting

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2026 biology talkshow:海洋中的水力工程師-棘皮動物門 (國中生物單元九)

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This episode was published on May 23, 2026.

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