Living things produce anti-compound, which has the function of restraining, expelling and poisoning, and make chemical defense in the struggle of existence.
生物在生存竞争中，产生具有抑制或驱避、毒害作用的反抗物质进行化学防御，这是促进生物协同进化的一个重要因素。
Living things produce anti-compound, which has the function of restraining, expelling and poisoning, and make chemical defense in the struggle of existence.
生物在生存竞争中，产生具有抑制或驱避、毒害作用的反抗物质进行化学防御，这是促进生物协同进化的一个重要因素。
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