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地球上现在生存的许许多多绿色植物,它们的老祖宗是谁呢?地质史的研究告诉我们,绿色植物的祖先是蓝藻。已经知道最早的蓝藻化石在南非的古沉积岩中被发现。这是34亿年前在地球上已有生命的证据。古代蓝藻的样子和现代的蓝球
Who are the many ancestors of the many green plants that now exist on earth? The study of geological history tells us that the ancestors of green plants are cyanobacteria. It is known that the earliest blue-green algae fossils were found in ancient sedimentary rocks in South Africa. This is evidence of the existence of life on Earth 3.4 billion years ago. The look of ancient cyanobacteria and modern basketball