生存竞争
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(生(shēng )存(cún )竞(jìng )争(zhēng ),生(shēng )存(cún )竞(jìng )争(zhēng ))
同(tóng )种(zhǒng )或(huò )异(yì )种(zhǒng )生(shēng )物(wù )个(gè )体(tǐ )相(xiàng )互(hù )竞(jìng )争(zhēng )以(yǐ )维(wéi )持(chí )个(gè )体(tǐ )生(shēng )存(cún )并(bìng )繁(fán )衍(yǎn )种(zhǒng )族(zú )的(de )自(zì )然(rán )现(xiàn )象(xiàng )。
英(yīng )国(guó )生(shēng )物(wù )学(xué )家(jiā )达(dá )尔(ěr )文(wén )认(rèn )为(wéi )它(tā )是(shì )推(tuī )动(dòng )生(shēng )物(wù )进(jìn )化(huà )的(de )重(zhòng )要(yào )因(yīn )素(sù )。
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