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蚯蚓的秘密作文500字

時間:2018-02-15來源:本站整理 編輯:xiaoya 點擊:
有一天,晚上7點時,我和媽媽去書店買書。出來的,我發現了一條黑乎乎的東西在地上“走”,“哦,只是一條蚯蚓而已,沒什么大不了的嘛。”我順手從路邊拿起一根小木棍,把蚯蚓挑起,裝進一個紙盒里把它帶回了家。

一到家,我就把它放在一個花盆里。第二天,我起床后便去看那條蚯蚓,不禁在想:“如果蚯蚓在水里游泳會不會淹死呢?”我的好奇心一下子從腦子浮現了出來。

周末,我從樓梯上下來時,看到爸爸正在準備釣魚竿、魚線、浮漂和魚餌的時候,于是我請求爸爸帶我一起去釣魚,爸爸答應了,走之前,我順手把蚯蚓也帶了去。一會就到了河塘邊,我拿出魚竿,趁爸爸不注意時,慌忙把蚯蚓套在魚鉤上,爸爸轉過身來,我趕緊把魚線拋了出去。等了2分鐘,我把魚竿提起來,發現蚯蚓沒有被淹死呀,真奇怪。“淹不死你,難道還切不死你嗎?”腦子里的“壞主意”又浮現出來了。

回到家,我拿出小刀準備切時,發現蚯蚓伸長身子,“既然你也愿意,那我就真切下去了。”說話間,小刀把蚯蚓切成了兩段,可是居然它還能動,兩段都能扭來扭去的。爸爸正好進來,對我說:“蚯蚓是益蟲,可不能這樣對待它。”“可是,已經被我切了,能怎么辦呀?”“這倒不要緊,蚯蚓的身子會再長出來的,不用擔心。”爸爸地我說。于是,我趕緊把蚯蚓放進了圍墻外的花圃里去了。

后來,通過電腦上查找,我才知道蚯蚓再生能力很強,在受傷或切斷后,能產生一種似胚胎的間葉細胞,能分成各種組織繼續生存。另外,蚯蚓的糞便可以當肥料呢!它們還可以幫助花草蔬菜來松土呢。

這就是蚯蚓為什么能不死的秘密哦,現在大家都了解到蚯蚓是一種不死的益蟲,同學們,讓我們從現在開始,愛護蚯蚓,保護我們和諧的生態環境。
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