Biology, 30.11.2019 05:31 WhiteWinterRose
When cyanobacteria first appeared on earth, the earth's atmosphere contained little oxygen. cyanobacteria are thought to be responsible for bringing the oxygen in the earth's atmosphere to present levels. this appearance of oxygen and the beginning of aerobic life was made possible by the development of:
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Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata
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What causes the phospholipids to organize themselves the way they do
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When cyanobacteria first appeared on earth, the earth's atmosphere contained little oxygen. cyanobac...
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