隸屬山蟻亞科的螞蟻，尾部具有可分泌酸性液體的器官。1043Please respect copyright.ＰＥＮＡＮＡmtivmj8gvb
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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。1043Please respect copyright.ＰＥＮＡＮＡSCQ6p2RVRE
1043Please respect copyright.ＰＥＮＡＮＡ1TihYN1cNH
（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。1043Please respect copyright.ＰＥＮＡＮＡMIwCJkuC8a
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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。1043Please respect copyright.ＰＥＮＡＮＡhgOIffAbr4
1043Please respect copyright.ＰＥＮＡＮＡZjHdZ2H56W
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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。1043Please respect copyright.ＰＥＮＡＮＡS6oKWFbvCZ
1043Please respect copyright.ＰＥＮＡＮＡp2rJ0SMLiT
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。1043Please respect copyright.ＰＥＮＡＮＡjBH5f9AAaL
1043Please respect copyright.ＰＥＮＡＮＡklpxqXqYp2
（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。1043Please respect copyright.ＰＥＮＡＮＡmUYOT88CDH
1043Please respect copyright.ＰＥＮＡＮＡJibrE2UxWM
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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。1043Please respect copyright.ＰＥＮＡＮＡBoIldzvreL
1043Please respect copyright.ＰＥＮＡＮＡddaCYbAcdI
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。1043Please respect copyright.ＰＥＮＡＮＡ7JVbUSq0GS
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除非高價買入GME股份，才會自食其酸。1043Please respect copyright.ＰＥＮＡＮＡnFRfNzN9hW
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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。1043Please respect copyright.ＰＥＮＡＮＡKyQj2Pu8L9
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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/toc1043Please respect copyright.ＰＥＮＡＮＡcFfCxuCcBu
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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。1043Please respect copyright.ＰＥＮＡＮＡFv554Fkxyh
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Link:1043Please respect copyright.ＰＥＮＡＮＡVc4rXXTSg3
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1043Please respect copyright.ＰＥＮＡＮＡoDGdA4UPUt
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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。1043Please respect copyright.ＰＥＮＡＮＡg8LgRNkqGJ
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Ref1:https://elifesciences.org/articles/602871043Please respect copyright.ＰＥＮＡＮＡ6pi6f1Knag
1234 copyright protection1039ＰＥＮＡＮＡ5jM8RUxZoO 尼

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