隸屬山蟻亞科的螞蟻,尾部具有可分泌酸性液體的器官。518Please respect copyright.PENANAhvIdY9X454
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甲酸(Formic Acid)是酸性液體的主要物質,普遍認作為抵禦外敵之用。518Please respect copyright.PENANAg0t5bZ5UEC
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(圖2)研究(Ref1)發現,餵食山蟻亞科螞蟻含有10%蜜糖成份的水(pH5)後,其消化器官的pH值會有所降低;pH越低,泛指酸性越重。518Please respect copyright.PENANAqmbU4CsG68
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(圖手3)若果拑制螞蟻的舉動,進食蜜糖水後,其消化器官的pH值並不會有所下降。518Please respect copyright.PENANAVhgvZkE6Y9
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後來發現,消化器官之所以進食後出現pH下降,是因為牠們進食後會咀嚼尾部的酸性分泌液所致。518Please respect copyright.PENANAYUrF1dVkeI
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當牠們的行動被有所限制後,再也沒能「自食其酸」,因此消化器官的pH值並不會有所下降。518Please respect copyright.PENANANXUNQz54Jl
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(圖4)自食其酸的其中一道作用,就是能夠幫忙消除外來食物對自己有害的細菌。518Please respect copyright.PENANAemNSQg7lds
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研究故意注入特定的細菌到食物之中,再餵給螞蟻,亦能夠量度出該細菌並沒能夠在酸性分泌液中生存。518Please respect copyright.PENANArDBoN12bmE
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而我們人類本身的胃部本身就懂得製作胃酸,並不需要「自食其酸」來抵禦外來細菌。518Please respect copyright.PENANAGVyFTqOW06
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除非高價買入GME股份,才會自食其酸。518Please respect copyright.PENANAtWuGZmSITE
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如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。518Please respect copyright.PENANAxh74ED4md9
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc518Please respect copyright.PENANAm4sagy7PvU
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。518Please respect copyright.PENANAG33aP6XsLI
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Link:518Please respect copyright.PENANAtOCzthwtXG
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio518Please respect copyright.PENANA1bJnT5k0Yc
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基於WhatsApp/Facebook等問題,IG將不會再作更新,只會寄居本土LIHKG及Penana。518Please respect copyright.PENANAIm9nAyUG2j
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Ref1:https://elifesciences.org/articles/60287518Please respect copyright.PENANAr0d23S7pZm