Evolution Site - Teaching About Evolution

Despite the best efforts of biology teachers, misinformation about evolution remain. People who have been exposed to the nonsense of pop science often believe that biologists claim they don't believe in evolution.

This rich Web site, a companion to the PBS program, provides teachers with materials which support evolution education, while avoiding the kinds of misconceptions that make it difficult to understand. It's organized in a "bread crumb" format to aid in navigation and orientation.

Definitions

Evolution is a complex and difficult subject matter to teach well. It is often misunderstood by non-scientists and even some scientists are guilty of using a definition that confuses the issue. This is particularly relevant when discussing the nature of the words themselves.

Therefore, it is important to define terms that are used in evolutionary biology. Understanding Evolution's website provides this in an easy and helpful manner. It is an accompanying site for the 2001 series, but also a resource of its own. The content is presented in a nested fashion that aids navigation and orientation.

The site defines terms such as common ancestor, gradual process and adaptation. These terms help frame the nature of evolution as well as its relationship to other concepts in science. The website provides a summary of the way in which evolution has been tested. This information can be used to dispel the myths that have been created by the creationists.

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

Adaptation: 에볼루션 바카라 사이트 The tendency of heritable characteristics to become more suitable to a particular setting. This is due to natural selection, which happens when organisms that have better adapted traits are more likely to survive and reproduce than those with less adaptable characteristics.

Common ancestor (also known as common ancestor): 에볼루션 카지노 사이트 The most recent ancestor that is shared by two or more species. By studying the DNA of these species it is possible to identify the common ancestor.

Deoxyribonucleic acid: A large biological molecule that contains information needed for cell replication. The information is stored in nucleotide sequences, which are strung into long chains, referred to as chromosomes. Mutations are the basis for new genetic information in 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 are the interactions between predator and prey, or the parasite and the host.

Origins

Species (groups that can crossbreed) change by a series of natural variations in their offspring's traits. The changes can be caused by a variety of factors, including natural selection, genetic drift and gene pool mixing. The evolution of new species can take thousands of years. Environmental conditions, like climate changes or competition for food resources and habitat, can slow or accelerate the process.

The Evolution site traces through time the emergence of various species of plants and animals, focusing on major transitions within each group's past. It also explores human evolution as a subject that is of particular interest for students.

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

The site is mostly one of biology, but it also contains lots of information about paleontology and geology. One of the most appealing features of the website are a series of timelines that illustrate how climatic and geological conditions changed over time, as well as an interactive map of the geographical distribution of some fossil groups that are featured on the site.

Although the site is a companion piece to the PBS television series, it also stands on its own as a valuable source for teachers and students. The site is well-organized and offers clear links to the introductory material of Understanding Evolution (developed under the National Science Foundation's assistance) as well as the more specialized features on the museum's website. These hyperlinks facilitate the move from the enthralling cartoon style of the Understanding Evolution pages to the more sophisticated world of research science. There are also links to John Endler's experiments with guppies. They illustrate the importance ecology in evolutionary theory.

Diversity

The evolution of life on Earth has resulted in a variety of animals, plants and insects. Paleobiology is the study of these creatures in their geographical context and offers many advantages over the modern observational and research methods for analyzing evolutionary processes. In addition to examining the processes and events that happen regularly or over a long period of time, paleobiology allows to analyze the relative abundance of various species of organisms and their distribution across the course of geological time.

The website is divided into different paths that can be chosen to gain knowledge about evolution. One of the paths, "Evolution 101," walks the reader through the evolution of nature and the evidence of evolution. The course also focuses on misconceptions about evolution as well as the history of evolutionary thinking.

Each of the other sections of the Evolution site is equally developed, 에볼루션 코리아 with materials that can support a variety of educational levels and pedagogical styles. The site has a range of multimedia and interactive resources which include animations, video clips and virtual labs as well as general textual content. The content is presented in a nested bread crumb style that facilitates navigation and orientation on the web site.

For instance the page "Coral Reef Connections" provides an overview of the relationships between corals and their interactions with other organisms, then concentrates on a specific clam that can communicate with its neighbours and respond to changes in water conditions at the reef level. This page, as well as the other multidisciplinary interactive and multimedia pages offers a great introduction to many topics in evolutionary biology. The content also includes an explanation of the role of natural selection and the concept of phylogenetic analysis which is a key tool for understanding the evolution of change.

Evolutionary Theory

For biology students, evolution is a key thread that connects all branches of the field. A wide selection of resources helps teachers teach evolution across all disciplines of life sciences.

One resource, a companion to the PBS television series Understanding Evolution, is an outstanding example of an Web site that offers both depth and breadth in its educational resources. The site has a wide array of interactive learning modules. It also has an embedded "bread crumb" structure that allows students to transition from the cartoon style of Understanding Evolution to elements on this large Web site closer to the world of research science. Animation that introduces the concept of genetics links to a page highlighting John Endler's artificial-selection experiments with Guppies in native ponds in Trinidad.

The Evolution Library on this website contains a large multimedia library of materials that deal with evolution. The contents are organized into courses that are based on curriculum and follow the learning objectives set out in the biology standards. It includes seven short videos specifically designed for classroom use, which can be streamed at no cost or purchased on DVD.

Evolutionary biology remains a field of study with a lot of important questions to answer, such as the causes of evolution and how quickly it occurs. This is especially true for the evolution of humans, where it was difficult to reconcile religious beliefs that held that humans have a distinct place in creation and 에볼루션 바카라사이트 a soul with the idea that innate physical traits originated from the apes.

In addition there are a myriad of ways that evolution can be triggered, with natural selection being the most widely accepted theory. However scientists also study other kinds of evolution like mutation, genetic drift, and sexual selection, among others.

Although many scientific fields of study are in conflict with literal interpretations found in religious texts, the concept of evolution biology has been a source of intense debate and opposition from religious fundamentalists. Some religions have reconciled their beliefs to evolution but others haven't.