Examples of evolution in the following topics:
- 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.
- 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.
- Lenski's sociological evolution approach views technological progress as the most basic factor in the evolution of societies and cultures.
- Sociocultural evolution is an umbrella term for theories of cultural evolution and social evolution, describing how cultures and societies have changed over time.
- Most nineteenth century and some twentieth century approaches aimed to provide models for the evolution of humankind as a whole, argue that different societies are at different stages of social development.
- He views technological progress as the most basic factor in the evolution of societies and cultures.
- It is the relationships among population, production, and environment that drive sociocultural evolution.
- 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.
- 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
- Selective breeding is a field concerned with testing hypotheses and theories of evolution by using controlled experiments.
- Experimental evolution is a field in evolutionary and experimental biology that is concerned with testing hypotheses and theories of evolution by using controlled experiments.
- One of the first to carry out a controlled evolution experiment was William Dallinger.
- For example, on February 15, 1988, Richard Lenski started a long-term evolution experiment with the bacterium E. coli.
- Drawing of the incubator used by Dallinger in his evolution experiments.
- The Scopes Trial of 1925 brought to national attention the debate
over teaching evolution in public schools.
for the regular biology teacher at the high school in Dayton, Tennessee, Scopes
said he was unsure whether he had actually taught evolution.
- Prominent attorney Clarence Darrow spoke in
defense of Scopes by presenting the Modernist argument in favor of the Theory
- Still, the
teaching of evolution expanded, while efforts to use state laws to reverse the
trend failed in the court of public opinion.
was the defendant in the famous Scopes Trial of 1925, which provided a forum in which to argue the teaching of evolution in public schools in schools.
- 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.
- 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