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Darwin considered evolution to be caused due to :

1)small changes/variations that occured

2)these variations were directed specifically towards adapting to the environment(directional)

3)evolution was a slow process

De Vries believed that evolution occured by:

1)large changes that occured

2)these changes were mutations and were stochastic or random, not directional

3)evolution occured in fits and starts and was not a slow ongoing process

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Q: How is theory of evolution of Darwin and Hugo deVries different?
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Related questions

What is Edwin Darwins theory on evolution?

Edwin Darwin did not propose a separate theory on evolution. The theory of evolution is commonly attributed to Charles Darwin, who put forth the concept of natural selection as the mechanism driving evolution. Edwin Darwin does not have a notable theory associated with evolution.


What is Darwin's legacy?

the theory of evolution.


What was Darwin ideas?

the theory of evolution


What was the hypothesis that was proposed by Darwin?

Darwin invented the theory of evolution


Darwin's theory of evolution by natural?

Evolution by natural selection.


Did Darwin have knowledge of DNA when he proposed his theory of evolution?

No, Darwin did not have knowledge of DNA when he proposed his theory of evolution. DNA was not discovered until after Darwin's time, in the 20th century. Darwin's theory of evolution was based on observations of natural selection and the variation and adaptation of species over time.


What is the theory that is fundemental to all organisms?

Darwin's theory of evolution.


Who was the author of natural theory?

You mean the evolution theory? Darwin


What were Darwin's contributions to the theory of evolution?

He came up with the theory.


What theory does the natural selection belong to?

Darwin's theory of evolution.


Who understands evolution better then Darwin?

Darwin didn't fully understand evolution he came up with the theory.


Why is evolution scientific theory?

Darwin's Theory of Evolution is solidly based on detailed observation of many different species, and on logical analysis of those observations, hence, it is scientific.