Answer:
Early cyanobacteria in stromatolites are thought to be responsible for increasing the amount of oxygen in the primeval Earth's atmosphere through their continuing photosynthesis. They were the first known organisms to photosynthesize and produce free oxygen.
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The Answer is B i just took the test. Enjoy, i also just looked it up on a quizlet. That's another website you can use if it comes up in the search for the question.
I just looked it up, it's carbon!
Answer: <span>DNA replication wouldstill occur, but replication of the lagging strand would take much longer than normal.
</span><span><span>DNA ligase is the enzyme that binds the Okazaki fragments in the lagging strand. </span>Since the mutation resulted in much less DNA ligase, there would be less of this enzymes working for the replication process. Doesn't mean it can't happen, but it will be slower.
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