what is evolution explain
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it is the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
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Evolution is the sequence of gradual changes that takes place in primitive organisms over millions of years in which new species are produced.
The two types of traits are:
- Acquired traits: A trait which an organism develops develops in his lifetime.
- Inherited traits: A traits which an organism inherits from his parents.
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What is the theory of evolution ?
- Within population there is a natural selection.
- There a lot of variations in some individuals.
- Even though there are a lot number of offsprings produced the population remains constant naturally.
- This happens due to the struggle between the members of the same species and different species for resources.
- This struggle eliminates the unfit individuals and the fit ones survive.
- The fit ones pass on the favourable variations further.
- When the variations get accumulated for a longer period of time, a new species is originated.
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