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Evolution Site - Teaching About Evolution

Despite the best efforts of biology educators, misinformation about evolution persist. Pop science fiction has led a lot of people to think that biologists don't believe in evolution.

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

Definitions

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

It is therefore important to define the terms used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a clear and useful manner. The site is a companion site to the show which first aired in 2001, but it also functions as an independent resource. The content is organized in a way that makes it easy to navigate and comprehend.

The site defines terms such as common ancestor (or common ancestor), gradual process, and adaptation. These terms help to define the nature of evolution and its relation to other concepts in science. The site then offers an overview of how the concept of evolution has been vetted and verified. This information can be used to dispel myths that have been engendered by creationists.

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

Adaptation is the tendency of heritable traits to become better suited to an environment. This is a result of natural selection, which occurs when organisms that are better adapted traits are more likely to survive and reproduce than those with less adapted characteristics.

Common ancestor (also called common ancestor): The most recent ancestor 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 holds the information necessary for cell replication. The information is stored in nucleotide sequences, which are strung into long chains called chromosomes. Mutations are responsible for the creation of new genetic information inside cells.

Coevolution is a relationship between two species where evolutionary changes in one species are dependent on evolutionary changes in the other. Examples of coevolution include the interactions between predator and prey or the parasite and the host.

Origins

Species (groups of individuals who can interbreed) develop through natural changes in the characteristics of their offspring. Changes can be caused by numerous factors, like natural selection, gene drift and mixing of the gene pool. The evolution of new species could take thousands of years. Environmental conditions, such as climate changes or competition for food resources and habitat can impede or accelerate the process.

The Evolution site follows the emergence of various groups of animals and plants, focusing on major transitions in each group's past. It also explores human evolution as a subject that is particularly important to students.

Darwin's Origin was published in 1859, at a time when only a handful of antediluvian fossils of humans had been found. The skullcap that is famous, along with the associated bones were discovered in 1856 in the Little Feldhofer Grotto of Germany. It is now regarded as an early Homo neanderthalensis. Although the skullcap was not published until 1858, which was one year after the first edition of the Origin appeared, it is very unlikely that Darwin had seen or heard of it.

The site is mostly a biology site however, it also has many details on geology and paleontology. Among the best features on the site are a timeline of events that illustrate how climatic and geological conditions have changed over time, as well as an interactive map of the distribution of a few fossil groups that are featured on the site.

The site is a companion to the PBS TV series but it can also be used as an educational source for teachers and students. The site is well-organized, and provides easy links to the introductory information of Understanding Evolution (developed under the National Science Foundation's assistance) and the more specific features of the museum's website. These hyperlinks facilitate the move from the engaging cartoon style of the Understanding Evolution pages to the more sophisticated world of research science. In particular there are links to John Endler's experiments with guppies that illustrate the importance of ecology in evolutionary theory.

Diversity

The evolution of life on Earth has resulted in a variety of plants, animals, and insects. Paleobiology is the study of these creatures in their geological context and has a number of advantages over the current observational and experimental methods in its exploration of evolutionary processes. Paleobiology can examine not only the process and events that happen regularly or over time, but also the distribution and frequency of various animal groups in space over the course of the geological time.

The website is divided into different options to study the subject of evolution. One of the paths, "Evolution 101," guides the user through the nature and evidence of evolution. The path also examines myths about evolution and the background of evolutionary thought.

Each of the main sections on the Evolution website is equally well-developed, and includes materials that can be used to support a variety of levels of curriculum and teaching methods. The site includes a variety of multimedia and interactive resources which include videos, animations, and virtual labs in addition to general textual content. The content is presented in a nested bread crumb style that facilitates navigation and orientation on the Web site.

The page "Coral Reef Connections", for example, gives a brief overview of coral relationships, their interaction with other organisms, and then zooms in on one clam that can communicate with its neighbours and respond to changes in conditions of the water 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 wide spectrum of topics in evolutionary biology. The content includes an explanation of the importance of natural selection and the concept of phylogenetics, an important tool for understanding evolutionary changes.

Evolutionary Theory

For biology students, evolution is a key thread that weaves together all branches of the field. A rich collection supports teaching evolution across the disciplines of life science.

One resource, which is the companion to PBS's television show Understanding Evolution is an excellent example of an Web page that provides depth and broadness in terms of educational resources. The site features a wealth of interactive learning modules. It also features an "bread crumb structure" that assists students in moving away from the cartoon-like style that is used in Understanding Evolution and onto elements on this site that are more closely related to the worlds of research science. For instance an animation that introduces the idea of genetic inheritance connects to a page highlighting John Endler's artificial selection experiments using guppies in the ponds of his native country of Trinidad.

Another resource that is worth mentioning is the Evolution Library on this site, 에볼루션 바카라 무료 바카라 (https://gitea.ashcloud.com/evolution9769) which contains an extensive collection of multimedia assets connected to evolution. The content is organized into curriculum-based pathways that correspond to the learning objectives outlined in the biology standards. It includes seven short videos designed specifically for use in the classroom, and can be streamed at no cost or 에볼루션 바카라 체험 (just click for source) purchased on DVD.

A number of important questions remain at the heart of evolutionary biology, including what causes evolution to occur and how fast it happens. This is especially applicable to human evolution where it has been difficult to reconcile that the physical characteristics of humans were derived from apes with religious beliefs that claim that humanity is unique in the universe and has an exclusive place in the creation, with a soul.

Additionally there are a myriad of ways in which evolution could be triggered with natural selection being the most widely accepted theory. However scientists also study other types of evolution such as genetic drift, mutation, and sexual selection, among other things.

While many fields of scientific study are in conflict with literal interpretations found in religious texts, evolution biology has been a subject of intense debate and resistance from religious fundamentalists. Some religions have reconciled their beliefs with evolution, while others haven't.