Examples of parallel evolution in the following topics:
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- Convergent evolution occurs in different species that have evolved similar traits independently of each other.
- 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.
- Parallel evolution occurs when two independent but similar species evolve in the same direction and thus independently acquire similar characteristics; for example, gliding frogs have evolved in parallel from multiple types of tree frog.
- The opposite of convergent evolution is divergent evolution, whereby related species evolve different traits.
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- The same geological period is also marked by the appearance of many modern groups of insects, including pollinating insects that played a key role in ecology and the evolution of flowering plants.
- New data in comparative genomics and paleobotany have, however, shed some light on the evolution of angiosperms.
- Rather than being derived from gymnosperms, angiosperms form a sister clade (a species and its descendents) that developed in parallel with the gymnosperms.
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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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- If you were to hike up a mountain, the changes you would see in the vegetation would parallel those as you move to higher latitudes.
- Species distribution patterns are based on biotic and abiotic factors and the influences these factors have had during the very long periods of time required for species evolution.
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- These rocks normally form relatively horizontal, parallel layers, with younger layers forming on top.
- Stratigraphy and biostratigraphy can in general provide only relative dating (A was before B), which is often sufficient for studying 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