“precambrian flora”的概念、定义、翻译、参考文献-科学参考

单词	precambrian flora
释义	precambrian flora Encyclopedia 理学古植物学释 precambrian flora前寒武纪植物前寒武纪（5.4亿年以前）和早古生代是藻类植物的时代。35亿年前或略早于35亿年前到大约15亿年的前寒武纪地球上只有细菌和蓝藻。它们都是原核生物。从15亿年前到寒武纪（5.4亿年前）地球上除细菌和蓝藻外，已有绿藻、红藻和褐藻。
随便看	behavioral theory of leadership behavioral therapy behavioral therapy model behavioral thermoregulation behavior and emotion disorders in children and adolescent behavior and emotion disorders in children and adolescents behavior assessment behavior assessment system for children behavior at infinity behavior at the boundary behavior diagram behavior disorders in childhood behavior dymanics model behavior emergence behavior homology behaviorism behaviorism education behaviorism paradigm behavioristic learning theory behavioristic personality theory behavioristic psychology behaviorist revolution behaviorists' view of criminaltiy behaviorist theory behavior level effect

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