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Evolution Site - Teaching About Evolution
Despite the best efforts of biology teachers, misinformation about evolution remain. Pop science nonsense has led many people to think that biologists don't believe in evolution.
This rich Web site - companion to the PBS series It provides teachers with materials that promote evolution education and avoid the kinds of misconceptions that make it difficult to understand. It's organized in a "bread crumb" format to facilitate navigation and orientation.
Definitions
It's not easy to properly teach evolution. It is often misunderstood by non-scientists, and even scientists use definitions that confuse the issue. This is particularly true when discussing the definition of the words.
Therefore, it is essential to define terms used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a clear and helpful manner. The site is both a companion for the 2001 series, but also a resource on its own. The content is presented in a structured manner that makes it simpler to navigate and comprehend.
The site defines terms like common ancestor, gradual process and so on. These terms help to frame the nature of evolution as well as its relationship to other scientific concepts. The website provides a summary of the way the concept of evolution has been tested. This information can be used to dispel the myths that have been engendered by creationists.
It is also possible to find the glossary of terms used in evolutionary biology. These terms include:
The process of adaptation is the tendency of heritable traits to become more suitable to their environment. This is a result of natural selection. Organisms with more adaptable traits are more likely than those with less adapted traits to reproduce and survive.
Common ancestor: The most recent common ancestor of two or more species. The common ancestor can be identified by studying the DNA of those species.
Deoxyribonucleic Acid: A large biological molecular that contains the information required for cell replication. The information is stored in nucleotide sequences which are strung into long chains called chromosomes. Mutations are the cause of new genetic information in cells.
Coevolution is a relation between two species where evolution of one species influence evolutionary changes of the other. Examples of coevolution are the interactions between predator and prey, or host and parasite.
Origins
Species (groups that can interbreed) develop through a series natural changes in their offspring's traits. The changes can be triggered by a variety that include natural selection, genetic drift and mixing of genes. The evolution of a new species could take thousands of years and the process may be slowed or increased due to environmental conditions, such as climate change or competition for food or habitat.
The Evolution site traces through time the evolution of various animal and plant groups with a focus on major changes in each group's history. It also focuses on human evolution and is a subject that is of particular interest for students.
Darwin's Origin was published in 1859, at a time when only a few antediluvian fossils of human beings had been discovered. The skullcap that is famous, along with the bones associated with it, was 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 was published, it's very unlikely that Darwin had seen or heard of it.
The site is mostly a biology site, but it also contains lots of information about geology and paleontology. One of the most appealing features of the website are a series of timelines that illustrate the way in which climatic and geological conditions have changed over time and 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 television series, but it could also be used as a resource for teachers and students. 에볼루션 무료 바카라 is extremely well-organized and offers clear links between the introduction information in Understanding Evolution (developed with support from the National Science Foundation) and the more sophisticated elements of the museum Web site. These hyperlinks help users move from the engaging cartoon style of the Understanding Evolution pages to the more sophisticated world of research science. Particularly, there are links to John Endler's research with guppies that illustrate the importance of ecology in evolutionary theory.
Diversity
The evolution of life has resulted in a variety of plants, animals and insects. Paleobiology is the study of these creatures in their geological environment offers many advantages over modern observational or experimental methods for exploring evolutionary processes. Paleobiology is able to study not only processes and events that occur regularly or over time, but also the relative abundance and distribution of different groups of animals across the geological time.
The Web site is divided into a variety of pathways to understanding evolution that include "Evolution 101," which takes the viewer on a line through the scientific process and the evidence to support the theory of evolution. The course also focuses on common misconceptions about evolution and the evolution of thought.
Each of the other major sections of the Evolution site is equally well created, with resources that can be used to support a range of different pedagogical levels and curriculum levels. The site offers a wide array of interactive and multimedia content, including videos, animations, and virtual labs as well as general textual content. The breadcrumb-like organization of the content helps with navigation and orientation on the large Web site.
For instance, the page "Coral Reef Connections" gives a brief overview of the relationships between corals and their interactions with other organisms. Then, it concentrates on a specific clam that is able to communicate with its neighbours and respond to changes in the water conditions that take place at the level of the reef. This page, as well as the other multidisciplinary interactive and multimedia pages, gives a good introduction to many topics in evolutionary biology. The content includes a discussion on the importance of natural selection and the concept phylogenetics analysis which is a crucial tool to understand evolutionary changes.
Evolutionary Theory
For biology students the concept of evolution is a major thread that weaves together all branches of the field. A wide selection of resources helps teachers teach evolution across all disciplines of life science.
One resource, which is the companion to PBS's TV series Understanding Evolution is an excellent example of an Web site that provides depth and wide range of educational resources. The site has a variety of interactive learning modules. It also features a nested "bread crumb" structure that helps students move from the cartoon style of Understanding Evolution to elements on this massive website that are more closely tied to the world of research science. For instance an animation that introduces the concept of genetic inheritance links to a page highlighting John Endler's experiments in artificial selection with guppies in native ponds of Trinidad.
The Evolution Library on this website contains a large multimedia library of assets related with evolution. The content is organized into the form of curriculum-based pathways that are in line with the learning goals set forth in the standards for biology. It contains seven short videos designed for use in classrooms. They are available to stream or purchase as DVDs.
Many important questions remain at the heart of evolutionary biology, including the factors that trigger evolution and how fast it occurs. This is especially true in the case of human evolution which was a challenge to reconcile religious beliefs that humans have a distinct place in the creation and a soul, with the idea that innate physical traits originated from the apes.
There are a myriad of other ways in which evolution can occur including natural selection, which is the most widely accepted theory. However scientists also study other types of evolution such as genetic drift, mutation, and sexual selection, among others.
While many scientific fields of inquiry have a conflict with literal interpretations of religious texts, evolutionary biology has been the subject of particularly intense controversy and resistance from religious fundamentalists. While certain religions have been able to reconcile their beliefs with the notions of evolution, others haven't.