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Darwin observed that high birthrates and a shortage of life's necessities forced organisms into a constant "struggle for existence", both against the environment and against each other is which led Darwin to propose his theory of constitution

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βˆ™ 8y ago
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βˆ™ 9y ago

The idea that life changes over time, and the idea that modern species evolved from earlier species, was already widely accepted when Darwin began his research - although nobody yet understood how, and although most naturalists were unwilling to apply those ideas to the human species as well.

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βˆ™ 9y ago

The belief that organisms originate from a common ancestor was much of the basis that the theory of natural selection was based on. Evidence of animals sharing the same trait, even though for some it appears to have no benefit to them, appears to have been at the root of this belief.

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βˆ™ 14y ago

Darwin did not comment of the origin of life. He said that modern life is the result of adaptations guided by natural selection.

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βˆ™ 10y ago

That all life had a single common ancestor.

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βˆ™ 14y ago

Because they did.

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Q: What led Darwin to believe that organisms originate from a common ancestor?
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Related questions

How did Darwin in the 1800s explain the origin of species?

Species originate through adaptation by natural selection. Strange thing really, Darwin didn't even believe in evolution.


What are the structurall and biochemical similarities of animalsand all living organisms?

The structural and biochemical similarities among living organisms are best explained by Darwin's conclusion: Living organisms evolved through a gradual modification of earlier forms --- descent from a common ancestor.


The evolution of numerous species such as Darwin's finches from a single ancestor called?

The evolution of numerous species, such as Darwin's finches from a single ancestor is called adaptive radiation.


The evolution of numerous species such as Darwin's finches from a single ancestor called-?

The evolution of numerous species, such as Darwin's finches from a single ancestor called adaptive radiation.


What did taxonomists learn from Darwin's theory of evolution?

That all organisms on earth are related and rose from a probably universal common ancestor. That all organisms can be placed on the " tree of life " in nested hierarchies of ever growing ( for the most part ) complexity.


Where did Darwin think the Finches ancestor came from?

South America


Darwin and theory of common descent states that all organisms?

Darwin's theory of common descent states that all organisms _____.


Darwin’s theory of common descent states that all organisms?

Darwin's theory of common descent states that all organisms evolved from past organisms.


What was Charles Darwin's contributions to society?

Charles Darwin theorized that all species come from one common ancestor through evolution.


Who was it that proposed that all living things came from a common ancestor?

Charles Darwin


What did Darwin hypothesized that the different finches on the Galapagos islands all had a what?

a common ancestor


Why did Darwin think the finches he observed shared a common ancestor?

tu cola