海参受到恐吓敌害的时候会吐出内脏,海参为什么失去内脏还能生存?
推荐回答(5个)
海参失去内脏后可以再生,所以不会死亡。海参的再生力很强,受到刺激或处于不良环境下,如水质污浊,氧气缺乏,身体常强力收缩,压迫内脏从肛门排出,这种现象称为排脏现象。内脏排出后能再生新的内脏。少数海参被横切为2-3段,各段也能再生为完整个体。
海参为狭盐性动物,在半咸水或低盐海水中很少见。对水质的污染也很敏感,在污染的海水里,海参难以生存。
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扩展资料
海参富含蛋白质、矿物质、维生素等50多种天然珍贵活性物质,其中酸性粘多糖和软 骨素可明显降低心脏组织中脂褐素和皮肤脯氨酸的数量,起到延缓衰老的作用。海参体内所含 的18种氨基酸能够增强组织的代谢功能,增强机体细胞活力,适宜于生长发育中的青少年。
海参能调节人体水份平衡,适宜于孕期腿脚浮肿的女士。海参能消除疲劳,提高人体免疫力,增 强人体抵抗疾病的能力,因此非常适合经常处于疲劳状态的中年女士与男士,易感冒、体质虚 弱的老年人和儿童等亚健康人群。
参考资料来源:百度百科-海参
海参圆筒形的身体上长满肉刺,形似黄瓜。这软软的身体没有强有力的自卫武器,更没有快速游泳的本领,只能依靠身体腹面管足与肌肉的收缩蹒跚行动,很难抵挡敌害进攻。尽管它长相怪模怪样,偶尔也能吓唬对方,又喜欢躲进石头缝里生活,但因它弱小无能,仍难免遭受其他海洋动物的袭击。不过海参自有护身妙法。当海参遇到敌害进攻无法脱身时,便会耍弄一下“分身术”。通过身体的急剧收缩,将内脏器官迅速地从肛门抛向敌害,转害因此无奈离去。失去内脏后的海参,经过几个星期的休养生息,体内会重新长出内脏。海参有了这种高超本领,就能逃避敌害,保护自己。
又由于,海参是一种十分低级的生物,所以,它们的器官不象人类般那么复杂。而且海参并不是将体内的全部器官都吐出来,所以会有些内脏细胞残留在体内,可以再生,(如蛇的胆汁提取般)。所以当它们失去了体内的一些内脏器官后,它们不会那么容易死去。
【遇到天敌被抓时可以舍弃自身的一部份内脏帮助自己逃跑】,这个说法是不正确的,都是误传,很多人会说海参遇到危险时快速吐出内脏,借助反冲力快速逃跑,还有的说,海参吐出内脏,让捕食者饱餐一顿,而自己借机逃走,这两种说法都是错误的,第一种说法,海参是趴在海底的,不是悬浮在水中,那点反冲力还远远不能让海参趴在海底的沙土上向后快速滑行,谁也没遇到过坐在马桶上大便因为用力过猛而把自己反弹到天花板上的,你遇到了吗?
第二种说法也是错误的,海参遇到危险时,有些海参会吐出很多白色黏黏的条状物,吐出后不会脱离海参,一端还连着海参,另一端向上漂浮在海参上方,起到保护作用,但这不是海参的内脏,只是某些海参的自我保护的一个器官,跟乌贼遇到危险喷墨一样,海参吐出的东西,其他动物是不能食用的,也不敢食用,这种东西,白白的,黏黏的,很细长,粘在人皮肤上很刺疼,拿掉后会留下一条长长的红色的痕迹,很刺痒,跟海蜇粘在皮肤上一样的刺痛,所以其他动物见到了都会躲避,而不是食用。
海参在海底移动是很缓慢的,两三个小时也不过才移动几米而已。
我是做海参的,经常在国外加工海参,所以对这些比较了解。
它的内脏可以再生的,吐出内脏是逃避天敌的一种方法,让其误以为死亡,停止追捕.
因为海参吐出内脏,体内还有内脏细胞,所以海参吐出去,完全没事,还可以长出来。
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