Evolution Site - Teaching About Evolution
Despite the best efforts by biology teachers, there are still misconceptions regarding evolution. Pop science nonsense has led people to think that biologists don't believe in evolution.
This rich website - companion to the PBS series - provides teachers with materials which support evolution education and help avoid the kinds of misconceptions that hinder it. It's organized in a nested "bread crumb" format for ease of navigation and orientation.
Definitions
Evolution is a complex and challenging subject to teach effectively. It is often misunderstood by non-scientists, and even some scientists have been guilty of using definitions that confuse the issue. click homepage is particularly relevant when discussing the nature of the words themselves.
It is therefore important to define the terms that are used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a simple and efficient manner. The website is a companion to the show which first aired in 2001, but it can also function as an independent resource. The content is presented in a structured way that makes it easy to navigate and comprehend.
The site defines terms like common ancestor (or common ancestor), gradual process, and adaptation. These terms help define the nature and relationship of evolution to other concepts in science. The website then provides an overview of how the concept of evolution has been tested and verified. This information will help to dispel the myths created by creationists.
It is also possible to get a glossary of terms used in evolutionary biology. These terms include:
Adaptation is the tendency of hereditary traits to become better suited to an environment. This is a result of natural selection. It occurs when organisms that are more adaptable traits are more likely survive and reproduce than those with less adaptable characteristics.
Common ancestor (also called common ancestor) The most recent ancestor shared by two or more species. The common ancestor can be identified by studying the DNA of these species.
Deoxyribonucleic acid: A large biological molecule that holds the information required for cell replication. The information is stored in nucleotide sequences that are strung into long chains called chromosomes. Mutations are the source of new genetic information within cells.
Coevolution is a relationship between two species in which evolutionary changes in one species are dependent on evolutionary changes in the other. Examples of coevolution include the interaction between predator and prey, or the parasite and the host.
Origins
Species (groups of individuals that can interbreed) evolve through an array of natural changes in the characteristics of their offspring. Changes can be caused by many factors, such as natural selection, gene drift, and mixing of the gene pool. The development of a new species can take thousands of years and the process could be slowed down or speeded up by environmental factors like climate change or competition for food or habitat.
The Evolution site tracks through time the emergence of various species of plants and animals with a focus on major changes within each group's past. It also explores human evolution, which is a topic that is of particular interest for students.
Darwin's Origin was published in 1859, when just a handful of antediluvian fossils of humans had been found. The famous skullcap, with the bones that accompanied it, was discovered in 1856 in the Little Feldhofer Grotto of Germany. It is now recognized 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 extremely unlikely that Darwin had seen or heard of it.
While the site is focused on biology, it contains a wealth of information about geology and paleontology. One of the most appealing features of the Web site are a set of timelines that show how climatic and geological conditions changed over time, as well as an interactive map of the distribution of some fossil groups that are featured on the site.
While the site is a companion to the PBS television series but it also stands on its own as a great resource for teachers and students. The site is well-organized and provides easy links to the introductory material 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 enthralling cartoon style of the Understanding Evolution pages to the more sophisticated world of research science. Particularly there are hyperlinks to John Endler's experiments with Guppies that demonstrate the importance of ecology in evolutionary theory.
Diversity
The evolution of life has resulted in an array of plants, animals and insects. Paleobiology is the study of these creatures within their geological context offers many advantages over modern observational or research methods for exploring evolutionary phenomena. In 무료에볼루션 to exploring processes and events that take place frequently or over a long period of time, paleobiology can be used to analyze the relative abundance of various species of organisms and their distribution across the geological time.
The website is divided into a variety of ways to learn about evolution that include "Evolution 101," which takes the user on a linear path through the scientific process and the evidence supporting the theory of evolution. The course also focuses on misconceptions about evolution and also the history of evolutionary thought.
Each of the other main sections of the Evolution site is equally created, with resources that support a variety of different pedagogical levels and curriculum levels. The site offers a wide array of interactive and multimedia content which include video clips, animations and virtual laboratories as well as general textual content. The breadcrumb-like organization of the content helps with navigation and orientation on the large website.
For instance the page "Coral Reef Connections" gives a brief overview of the relationships between corals and their interaction with other organisms. Then, it concentrates on a specific clam that can communicate with its neighbors and respond to changes in the water conditions that occur 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 material includes an explanation of the importance of natural selection and the concept of phylogenetics, an important method for understanding the evolution of changes.
Evolutionary Theory
For biology students evolution is a crucial thread that connects all branches of the field. A wide selection of resources helps teachers teach evolution across the life science disciplines.
One resource, which is the companion to PBS's TV series Understanding Evolution is an excellent example of a Web site that provides depth and wide range of educational resources. The site offers a variety of interactive learning modules. It also features a "bread crumb structure" that assists students in moving away from the cartoon-like style that is used in Understanding Evolution and onto elements of this vast website that are closely linked to the fields of research science. An animation that introduces the concept of genetics links to a page highlighting John Endler's experiments with artificial selection using Guppies in native ponds in Trinidad.
The Evolution Library on this website has a huge multimedia library of resources that are associated with evolution. The contents are organized into curriculum-based paths that parallel the learning objectives outlined in the standards for biology. It contains seven videos designed for use in classrooms. These can be viewed online or purchased as DVDs.
Evolutionary biology is still a field of study that poses many important questions, including what causes evolution and the speed at which it happens. This is particularly relevant to human evolution, which has made it difficult to reconcile the idea that the physical traits of humans derived from apes with religious beliefs that claim that humanity is unique in the universe and has a special place in creation, with a soul.
There are a variety of other ways in which evolution can take place including natural selection, which is the most widely accepted theory. Scientists also study other kinds such as genetic drift, and sexual selection.
While many scientific fields of study conflict with literal interpretations found in religious texts, the concept of evolution biology has been a subject of intense debate and resistance from religious fundamentalists. Certain religions have embraced their beliefs with evolutionary biology, while others haven't.