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2018_2019学年高中生物7.2.1种群基因频率的改变与生物进化（知识表格）生物多样性的进化历程素材新人教版必修2.pptx

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2018_2019学年高中生物7.2.1种群基因频率的改变与生物进化（知识表格）生物多样性的进化历程素材新人教版必修2.pptx_第1页
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生物多样性的进化历程,古细菌,蓝藻和细菌,真核生物,出现了生产者和分解者,出现了有性生殖，实现了基因 重组，加快了生物进化速度,海洋中无脊椎动 物物种大爆发,出现了消费者，使生态系统具 有更复杂的结构；对植物的进 化产生重要影响,陆生植物：蕨类 植物 陆生动物：原始 的两栖类,生物登陆改变陆地环境,

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