Saturday 13 June 2015

What evidence supports the theory of evolution by natural selection?

The fossil record, genetics, and examples of local adaptations all support the theory of evolution by natural selection. 


The factors below identify how fossil records support the theory of evolution by natural selection.  


1. The fossil record shows a progression of complexity in organisms over time.


2. The fossil record shows that some organisms that once lived on Earth are now extinct. 


3. The fossil record shows examples of how one species transitioned into another...

The fossil record, genetics, and examples of local adaptations all support the theory of evolution by natural selection. 


The factors below identify how fossil records support the theory of evolution by natural selection.  


1. The fossil record shows a progression of complexity in organisms over time.


2. The fossil record shows that some organisms that once lived on Earth are now extinct. 


3. The fossil record shows examples of how one species transitioned into another and the development of new physical features within a species. 


Genetics also supports the theory of evolution by natural selection in the following ways.


1. All species on Earth share the same universal genetic code. This is strong support that all species share a common ancestor.


2. With today's technology, scientists are able to compare the genomes of different species. Through such technology, scientists have been able to show genetic commonalities between species. It is thought that the more commonalities two species have, the more closely related the species are.


Examples of local adaptations also support the theory of evolution by natural selection. The change in the most abundant coloring of the peppered moths during the Industrial Revolution in England is an example a local adaptation. The article below fully describes the account of the peppered moths.  

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