Causes and Evidence of Evolution

Paper Summary:

This paper examines how the term "evolution" evokes varied connotations and how, in simple and direct terms, it is a process of change or development over a long period of time. It looks at how, in general, evolution refers to biologic or organic evolution, which is the formation and development of life on earth.

Outline
Theory of Evolution
Causes of Evolution
Population Dynamics and Evolution of Population
Evidence of Evolution

From the Paper:

"The evolutionary theory explains these aspects. Evolutionary theory proposes that all species probably evolved from a single form of life, which existed about three and half billion years ago. Over the ages, the original basic form of life is considered to have evolved into more species and these, in turn, into many other species. This "speciation" process as it is called led to the development of over 10 million species that live on earth today. The idea of speciation leads to another essential idea underlying it - the idea of common ancestry. As all species evolved from one basic life form, it is implied that any two species once had a common ancestor. But how can the idea of common ancestry are explained in the light of widely varying species? "

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