Answer:
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Explanation:
A molecular clock determines evolutionary relatedness by examining how many mutations or random changes in DNA, there are between two organisms. When we map the relatedness of different organisms, we are creating a phylogenetic tree. At some point, all organisms that are alive today shared a common ancestor.
Answer: Earth spins on its axis
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Enzymes are basically proteinaceous by nature.......
They are so important, because if they absent then our digestion process may complete in over a month...
<span>Enzyme and substrate bind using a lock-and-key mechanism. </span>
