Differentiate between speciation and evolution .
class 10
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Evolution is defined as the idea of adpation of characters causing further enhancements in organisms to survive different environmental circumstances. Evolution occurs due to mutation, gene flow, genetic drift, natural selection etc. Speciation is splitting of lineage forming different species from a comman ancestor.
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Speciation is splitting of lineage forming different species from a comman ancestor.
- It occurs when groups in a species become reproductively isolated and diverge.
- Changes are small-scale.
Evolution is a gradual and continuing process of change that occur over a period of time.
- Changes are large-scale.
- Evolution occurs due the basic phenomenon - survival.
- Evolution occurs due to mutation, gene flow, genetic drift, natural selection etc.
The key difference is the process of adaption may be linked with speciation, but not necessarily.
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