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How would the increasing number of photosynthesizing organisms on earth have affected both earth and its other organisms?
Wiki User
∙ 14y ago
As the first photosynthetic organisms increased in number, the concentration of oxygen in Earth's atmosphere began to increase. Organisms that could respire aerobically would have evolved and thrived. The sun's rays would have converted much of the oxygen into ozone molecules that would then have formed a layer that contained more ozone than the rest of the atmosphere.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoNo, because without them we would not have enough oxygen to support life.
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