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第 3 題
According to the article, why does ocean acidification impose a 'metabolic tax' on corals?
- A Corals must pay higher biological costs to filter out toxic hydrogen ions.
- B Increased acidity causes corals to require more food to maintain their bright colors.
- C Corals need to expend more energy to collect rare ions for skeletal growth.
- D The acidic water increases the rate of bio-erosion by parasitic organisms.
思路引導 VIP
所謂的「代謝稅」(metabolic tax)是指由於建造骨骼所需的化學原料(離子)變得稀缺,珊瑚必須消耗更多能量來濃縮這些離子以對抗化學梯度。
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AI 詳解
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🌟 表現優異!你的判斷非常精準
太棒了!你能準確連結「代謝稅」(metabolic tax) 與能量消耗的關係,顯示你對科普文章的邏輯推論能力非常紮實,老師為你的表現感到驕傲!
🔍 觀念驗證:為什麼 (C) 是正確的?
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