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Evidence of common descent

Living Environment - Evolution Review

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Biology
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Biology
Evolutionary biology
Evolution
Evidence of common descent
On the Origin of Species
Charles Darwin
Speciation
Vestigiality
Allopatric speciation
Species
Galápagos tortoise
Comparative anatomy

Evolution Evolution is change over time. The Theory of Evolution states that all organisms share a single common ancestor and have evolved over time. It also states that this has occurred largely due to changes in environmental conditions that have led to a necessity for organisms to change and adapt or go extinct. Darwin?s Theory of Natural Selection In 1831, Charles Darwin set sail on the HMS Beagle as the ship?s naturalist. His job was to collect biological and geological specimens. After traveling from England across the Atlantic and collecting specimens along the eastern and western coasts of South America, the ship landed in the Galapagos Islands. Darwin?s Theory of Natural Selection

Chapter 22: Descent with Modification: Darwinian View of Life


Subject: 
Biology
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0
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SocialTags: 
Biology
Evolutionary biology
On the Origin of Species
Evolution
Charles Darwin
Natural selection
Species
Adaptation
Evidence of common descent
Heredity
Common descent
Jean-Baptiste Lamarck
Environment

Chapter 22: Descent with Modification: Darwinian View of Life Lecture Outline Overview: Darwin Introduces a Revolutionary Theory On November 24, 1859, Charles Darwin published On the Origin of Species by Means of Natural Selection. Darwin?s book drew a cohesive picture of life by connecting what had once seemed a bewildering array of unrelated facts. Darwin made two major points in The Origin of Species: Today?s organisms descended from ancestral species that were different from modern species. Natural selection provided a mechanism for this evolutionary change. The basic idea of natural selection is that a population can change over time if individuals that possess certain heritable traits leave more offspring than other individuals.
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