Carbon levels will go up because trees store carbon
Answer: (1) photosynthesis occurred
Explanation: The photosynthesis process in cianobacteria changed the composition of earth's atmosphera, rising oxygen levels. This could be possible since photosynthesis used energy from the sun to produce energetic intermediaries to synthesize sugars, and as byproduct due to water photolisis, is oxygen.
The DVD experiment worked to prove that spontaneous generation
Changes to the classification system have meant that the classification of some species of organisms has changed too. The system had to be changed to incorporate this new group or organisms.
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