2026 biology talkshow:光影與深淵-大洋區生態系 (國中生物單元十)

深入探討大洋區生態系的結構與運作機制，將其比擬為一座以光線穿透度劃分樓層的巨大建築。首先回顧科學史，指出挑戰者號遠征如何推翻深海無生命的假說，進而界定出生物密集的透光區與環境極端的無光區。在陽光充足的表層，浮游植物透過光合作用支撐全球半數的初級生產力，並藉由湧升流補充關鍵營養鹽。深海生物則發展出生物發光與特殊感官來適應黑暗，並仰賴海洋雪花或鯨落提供的能量維生。最後強調透過日夜垂直遷徙與生物碳幫浦作用，海洋各層級已串聯成一個動態循環的整體，共同維繫全球氣候的穩定。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/2ffb550f95d3 Powered by Firstory Hosting

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2026 biology talkshow:光影與深淵-大洋區生態系 (國中生物單元十)

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