Answers

2014-01-14T19:32:59+05:30
The basis of evolution are
1. inheritence
2. variation
3. survival
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2014-01-15T19:55:06+05:30
It is a well established fact that all the life forms have evolved from a common ancestor. Scientists have proved that the life begun on the earth in the form of simple life forms. During the course of time, complex organism evolved from them. So, classification is also based on evolution. A simple organism is considered to be primitive while a complex organism is considered to be advanced.

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