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Evolution Site - Teaching About Evolution

Despite the best efforts of biology educators, misconceptions about evolution persist. Pop science nonsense has led people to believe that biologists don't believe evolution.

This site, a companion to the PBS program that provides teachers with resources which support evolution education, while avoiding the kinds of misconceptions that can undermine it. It's laid out in the "bread crumb" format to facilitate navigation and orientation.

Definitions

It's difficult to properly teach evolution. It is often misunderstood even by non-scientists, and even some scientists have been guilty of using definitions that confuse the issue. This is especially relevant when discussing the nature of the words themselves.

It is therefore essential to define the terms used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a simple and efficient way. The site is both a companion for the 2001 series, but it is also a resource on its own. The information is presented in an organized way that makes it easy to navigate and comprehend.

The site defines terms like common ancestor, gradual process and adaptation. These terms help frame the nature of evolution as well as its relationship to other scientific concepts. The site also provides an overview of how the concept of evolution has been vetted and validated. This information can be used to dispel myths that have been engendered by the creationists.

It is also possible to access a glossary of terms used in evolutionary biology. These terms include:

Adaptation: The tendency for heritable traits to become better adaptable to a specific environment. This is the result of natural selection, which happens when organisms with better-adapted traits are more likely to survive and reproduce than those with less adaptable traits.

Common ancestor (also called common ancestor) is the most recent ancestor that is shared by two or more species. By analyzing DNA from these species it is possible to determine the common ancestor.

Deoxyribonucleic acid: A massive biological molecule that contains information necessary for cell replication. The information is stored in nucleotides arranged in sequences that are strung together into long chains, called chromosomes. Mutations are responsible for the creation of new genetic information within cells.

Coevolution: A relationship between two species where evolutionary changes in one species are dependent on evolutionary changes in the other. Examples of coevolution include the interaction between predator 에볼루션 바카라 무료체험 and prey, or the parasite and the host.

Origins

Species (groups of individuals that are able to interbreed) change through natural changes in the characteristics of their offspring. The changes can be triggered by a variety of causes such as natural selection, genetic drift and gene pool mixing. The evolution of a new species may take thousands of years and the process can be slowed down or speeded up by environmental factors like climate change or the competition for food or habitat.

The Evolution site traces the emergence of a number of different animal and plant groups through time and focuses on the most significant shifts that occurred throughout each group's history. It also focuses on the evolutionary origin of humans which is especially important for students to understand.

When Darwin wrote the Origin of Species, only a handful of antediluvian human fossils had been discovered. One of them was the infamous skullcap and bones that were discovered in 1856 at the Little Feldhofer Grotto in Germany, which is now known to be an early Homo neanderthalensis. While the skullcap wasn't published until 1858, which was a year before the first edition of the Origin appeared, it is highly unlikely that Darwin had heard or seen of it.

The site is mostly a biology site, but it also contains many details on geology and paleontology. The Web site has a number of features that are particularly impressive, such as a timeline of the way that climate and geological conditions have changed over the course of time. It also features a map showing the distribution of fossil groups.

The site is a companion for a PBS TV series but it can also be used as an educational source for teachers and students. The site is extremely well organized and provides clear links between the introduction material in Understanding Evolution (developed with support from the National Science Foundation) and the more specific components of the museum's Web site. These hyperlinks make it easy to transition from the cartoon-style Understanding Evolution pages into the more sophisticated realms of research science. There are links to John Endler's experiments with guppies, which illustrate the importance ecology in evolutionary theory.

Diversity

The evolution of life on Earth has led to a wide variety of plants, animals, and insects. Paleobiology is the study of these creatures within their geographical context and offers many advantages over the modern observational and research methods for analyzing evolutionary phenomena. Paleobiology focuses on not only the process and events that happen regularly or over time but also the relative abundance and distribution of different groups of animals in space over the course of the geological time.

The site is divided up into various paths that can be chosen to study the subject of evolution. One of these paths, "Evolution 101," guides the user through the complexities and evidence of evolution. The course also focuses on misconceptions regarding evolution, as well as the history of evolutionary thought.

Each of the other major sections of the Evolution site is equally well constructed, with materials that support a variety of educational levels and pedagogical styles. The site includes a variety of interactive and multimedia content that include videos, animations, and virtual laboratories as well as general textual content. The breadcrumb-like arrangement of the content aids in navigation and orientation on the large web site.

For instance, 에볼루션 바카라 무료체험 the page "Coral Reef Connections" provides an overview of coral relationships and their interactions with other organisms, then concentrates on a specific clam that is able to communicate with its neighbours and respond to changes in water conditions at the reef level. This page, as well as the other multidisciplinary, multimedia, and interactive pages on the site, offer an excellent introduction to a broad spectrum of topics in evolutionary biology. The material also provides an overview of the importance of natural selection and the concept of phylogenetic analysis, which is an important tool for understanding the evolution of changes.

Evolutionary Theory

For 에볼루션 무료 바카라 biology students, evolution is a key thread that binds all the branches of the field. A vast collection of resources supports teaching about evolution across the life sciences.

One resource, which is a companion to the PBS television series Understanding Evolution, is an exceptional example of a Web site that offers both the depth and breadth of its educational resources. The site features a wealth of interactive learning modules. It also features a "bread crumb structure" that allows students to move away from the cartoon-like style of Understanding Evolution and onto elements on this site that are more closely linked to the fields of research science. For example an animation that explains the notion of genetic inheritance leads to a page that focuses on John Endler's artificial selection experiments with guppies in native ponds of Trinidad.

The Evolution Library on this website contains a large multimedia library of assets related to evolution. The content is organized in curricula-based paths that correspond to the learning objectives outlined in the standards for biology. It includes seven short videos specifically designed for use in the classroom, and can be streamed at no cost or purchased on DVD.

Evolutionary biology remains a field of study that has many important questions, such as the causes of evolution and how quickly it happens. This is particularly true for human evolution, 에볼루션 코리아코리아 (redirect to Tvoydvor) which has made it difficult to reconcile that the physical characteristics of humans were derived from apes and religious beliefs that hold that humanity is unique among living things and holds a an enviable place in creation with soul.

Additionally, there are a number of ways that evolution can occur, with natural selection being the most widely accepted theory. However, scientists also study other kinds of evolution, such as mutation, genetic drift and sexual selection, among others.

Although many scientific fields of study have a conflict with literal interpretations in religious texts, evolution biology has been a source of intense debate and resistance from religious fundamentalists. While certain religions have been able to reconcile their beliefs with the theories of evolution, others haven't.