Answers

2016-02-28T11:24:48+05:30
Copy of DNA called replication. replication has not 100 percent accurate chemical reaction because of it variations occur. variations are the key source of evolution . always few errors are produced . these errors are responsible for bringing about variations. to co relate evolution with classification, we find great difference in the body design of primitive and advanced organisms. primitive organisms were having simple body structure whereas advanced organisms are too more complex
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