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關注:1
2013-05-23 12:21
求翻譯:Aquatic vertebrates must obtain oxygen to survive, and they do so in various ways. Fish have gills instead of lungs, although some species of fish, such as the lungfish, have both. Marine mammals, such as dolphins, whales, otters, and seals need to surface periodically to breathe air. Some amphibians are able to absorb是什么意思?![]() ![]() Aquatic vertebrates must obtain oxygen to survive, and they do so in various ways. Fish have gills instead of lungs, although some species of fish, such as the lungfish, have both. Marine mammals, such as dolphins, whales, otters, and seals need to surface periodically to breathe air. Some amphibians are able to absorb
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2013-05-23 12:21:38
水生脊椎動物,必須獲得生存的氧氣,他們以各種方式。魚有鰓,而不是肺部,雖然一些物種肺魚,如魚,有兩個。海豚,鯨,水獺,海豹等海洋哺乳動物,需要定期浮出水面呼吸空氣。一些兩棲類動物是能夠通過自己的皮膚吸收氧氣。無脊椎動物展出的修改廣泛生存在含氧差的水域,包括呼吸管(見昆蟲和軟體動物虹吸管)和鰓(carcinus)。然而最進化的無脊椎動物生活在水生生物棲息地很少或根本沒有在水中呼吸的專業化。
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2013-05-23 12:23:18
水生脊椎動物必須獲取氧氣和生存而掙扎,他們以各種方式這樣做。 魚鰓而不是肺,雖然一些品種的魚類,例如lungfish,兼得。 海洋哺乳動物,如海豚、鯨、海獺、和密封件需要定期向表面上呼吸空氣。 一些兩棲動物能吸收氧氣通過自己的皮膚。
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2013-05-23 12:24:58
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2013-05-23 12:26:38
水生脊椎動物必須獲得生存,氧氣,他們這樣做,以各種方式。魚有鰓來代替肺,雖然有些品種的魚類,如 lungfish,兩者兼得。海洋哺乳
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2013-05-23 12:28:18
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