Can you explain how more life forms were able to be created because of cyanobacteria? Question 3 options: Scientists know there were only single-celled organisms for a long time. Then, after 1.9 billion years multi-cellular organisms began to form by spontaneous generation. Scientists Know that over time there was enough cyanobacteria that went through cellular respiration. This process created more oxygen in the atmosphere to allow multi-cellular organisms to form. Scientists know cyanobacteria went through photosynthesis.Once there were many of them letting off oxygen into the atmosphere, conditions were right for .multi-cellular organisms to form. Scientists know there were only single-celled organisms for a long period of time. Through the use of radiometric dating, they learned that multi-cellular organisms were able to develop after the ice age.
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matthewdlease:
7th
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The third option is correct.
According to scientists, cyanobacteria are photosynthetic bacteria that perform photosynthesis in order to derive energy.
They released oxygen as a result of photosynthesis that slowly turned the earlier oxygen poor environment into a favourable oxidizing one for other multi-cellular organisms to grow and survive.
This was also known as the great oxygenation event on Earth.
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