Examples of evolution in the following topics:
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- Convergent evolution occurs in different species that have evolved similar traits independently of each other.
- This phenomenon is called convergent evolution, where similar traits evolve independently in species that do not share a recent common ancestry.
- Convergent evolution describes the independent evolution of similar features in species of different lineages.
- Convergent evolution is similar to, but distinguishable from, the phenomenon of parallel evolution.
- The opposite of convergent evolution is divergent evolution, whereby related species evolve different traits.
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- Evolution, the unifying theory of biology, describes a mechanism for the change and diversification of species over time.
- Although it may seem that living things today stay the same, this is not the case: evolution is a gradual and ongoing process.
- Evolution by natural selection describes a mechanism for the change of species over time .
- Lyell's ideas, in turn, influenced Darwin's concept of evolution.
- All organisms are products of evolution adapted to their environment.
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- In the same way, the theory of evolution describes facts about the living world.
- The theory of evolution explains how populations change over time.
- In a larger sense, evolution is not goal directed.
- Genetic drift, for example, is another mechanism by which evolution may occurs.
- Thus evolution can occur without natural selection.
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- Evidence for evolution has been obtained through fossil records, embryology, geography, and molecular biology.
- The evidence for evolution is compelling and extensive.
- For example, scientists have recovered highly-detailed records showing the evolution of humans and horses .
- DNA sequences have also shed light on some of the mechanisms of evolution.
- Explain how the fossil record has aided in the development of the theory of evolution
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- Natural selection drives adaptive evolution by selecting for and increasing the occurrence of beneficial traits in a population.
- This process is known as adaptive evolution.
- Amongst the flora and fauna of these enchanted volcanic islands, Darwin formulated his groundbreaking theories on evolution.
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- Fossils tell us when organisms lived, as well as provide evidence for the progression and evolution of life on earth over millions of years.
- The fossil record was one of the early sources of data underlying the study of evolution and continues to be relevant to the history of life on Earth.
- Fossils provide solid evidence that organisms from the past are not the same as those found today; fossils show a progression of evolution.
- The resulting fossil record tells the story of the past and shows the evolution of form over millions of years.
- Synthesize the contributions of the fossil record to our understanding of evolution
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- This chart shows the evolution of amniotes.
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- No discussion of the evolution of plants on land can be undertaken without a brief review of the timeline of the geological eras.
- The evolution of plants occurred by a gradual development of novel structures and reproduction mechanisms .
- How organisms acquired traits that allow them to colonize new environments, and how the contemporary ecosystem is shaped, are fundamental questions of evolution.
- Paleobotanists trace the evolution of plants by following the modifications in plant morphology, which sheds light on the connection between existing plants by identifying common ancestors that display the same traits.
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- The evolution of viruses is speculative as they do not fossilize; biochemical and genetic information is used to create virus histories.