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Evolution Site - Teaching About Evolution
Despite the best efforts of biology teachers, misinformation about evolution persist. Pop science fiction has led a lot of people to believe that biologists don't believe evolution.
This rich Web site, a companion to the PBS program, provides teachers with materials that promote evolution education, while avoiding the kinds of misconceptions that make it difficult to understand. It's organized in the "bread crumb" format to facilitate navigation and orientation.
Definitions
Evolution is a complicated and difficult subject to teach well. Non-scientists often misunderstand the subject and some scientists employ a definition that confuses it. This is particularly applicable to debates about the meaning of the word itself.
It is therefore essential to define the terms that are used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a clear and useful way. It is a companion for the 2001 series, and also a resource on its own. The content is presented in a nested fashion which aids navigation and orientation.
The site defines terms like common ancestor (or common ancestor), gradual process and adaptation. These terms help to frame the nature of evolution and its relation to other concepts in science. The site provides an overview of the way in which evolution has been tested. This information can be used to dispel myths that have been engendered by the creationists.
It is also possible to access the glossary of terms used in evolutionary biology. These terms include:
Adaptation: The tendency of hereditary traits to become more suited to a particular environment. This is a result of natural selection. Organisms that have better-adapted characteristics are more likely than those with less adaptable characteristics to survive and reproduce.
Common ancestor (also called common ancestor): The most recent ancestor shared by two or more species. The common ancestor can be identified by analyzing the DNA of those species.
Deoxyribonucleic acid: A huge biological molecule that contains information required for cell replication. The information is stored in nucleotide sequences, 에볼루션 코리아 which are strung into long chains, referred to as chromosomes. Mutations are responsible for the creation of new genetic information within cells.
Coevolution is a relationship between two species in which evolutionary changes in one species are affected by changes in evolutionary processes in the other. Coevolution can be observed in the interactions between predator and prey, or parasite and hosts.
Origins
Species (groups of individuals that are able to interbreed) evolve through an array of natural changes in the traits of their offspring. These changes are caused by a variety of factors that include natural selection, genetic drift and gene pool mixing. The evolution of new species can take thousands of years. Environmental circumstances, such as climate change or competition for food resources and habitat, can slow or accelerate the process.
The Evolution site traces through time the emergence of various groups of animals and plants with a focus on major changes within each group's past. It also explores human evolution as a subject that is particularly important to students.
Darwin's Origin was written in 1859, when just a handful of antediluvian fossils of human beings had been discovered. The skullcap that is famous, along with the bones associated with it were discovered in 1856 in the Little Feldhofer Grotto of Germany. It is now regarded as an early Homo neanderthalensis. It is unlikely that Darwin knew about the skullcap when it was published in 1858, one year following the initial edition of The Origin. Origin.
While the site is focused on biology, it also includes a good deal of information about geology and paleontology. The site offers several features that are particularly impressive, including the timeline of how geological and climate conditions have changed over time. It also features an interactive map that shows the location of fossil groups.
The site is a companion for a PBS TV series but it can also be used as an educational resource for teachers and students. The site is very well organized and provides clear links between the introduction information in Understanding Evolution (developed with support from the National Science Foundation) and the more specific elements of the museum Web site. These links facilitate the transition 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 research with Guppies that demonstrate the importance of ecology in evolutionary theory.
Diversity
The evolution of life has resulted in a variety of animals, plants and insects. Paleobiology is the study of these creatures within their natural environment and has numerous advantages over modern observational and experimental methods of examining 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 species of animals across the geological time.
The Web site is divided into various paths to learning evolution which include "Evolution 101," which takes the viewer on a line through the science of nature and the evidence supporting the theory of evolution. The path also examines myths about evolution and 무료 에볼루션에볼루션 블랙잭 (published on Hubstack) the background of evolutionary thinking.
Each of the other major sections of the Evolution site is equally well constructed, with materials that can support a variety of curriculum levels and pedagogical styles. The site includes a variety of interactive and multimedia content that include videos, animations, and virtual laboratories in addition to general textual content. The content is laid out in a nested bread crumb fashion that aids navigation and orientation on the web site.
For instance the page "Coral Reef Connections" provides a comprehensive overview of the relationships between corals and their interactions with other organisms. It then narrows down to a single clam that can communicate with its neighbors and respond to changes in the water conditions that take place at the reef level. This page, as well as the other multidisciplinary multimedia and interactive pages, provides an excellent introduction to the many areas of evolutionary biology. The content also includes a discussion of the role of natural selection and the concept of phylogenetic analysis, which is a crucial tool for understanding the evolution of changes.
Evolutionary Theory
Evolution is a common thread that connects all branches of biology. A rich collection supports teaching evolution across all disciplines of 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 depth and breadth in its educational resources. The site has a variety of interactive learning modules. It also features an "bread crumb structure" that assists students in moving away from the cartoon-like style used in Understanding Evolution and onto elements of this vast website that are closely related to the fields of research science. For example an animation that introduces the concept of genetic inheritance links to a page that focuses on John Endler's experiments with artificial selection with guppies in native ponds of Trinidad.
Another useful resource is the Evolution Library on this Web site, which has an extensive collection of multimedia items connected to evolution. The content is organized into curricula-based pathways that correspond to the learning goals established in the biology standards. It includes seven short videos designed specifically for use in classrooms, and can be streamed for free or purchased on DVD.
A variety of crucial questions remain in the midst of evolutionary biology, including the factors that trigger evolution and how fast it happens. This is particularly relevant in the case of human evolution, where it was difficult to reconcile religious beliefs that held that humans have a distinct place in the creation and a soul with the idea that innate physical traits originated from Apes.
There are a myriad of other ways evolution can occur, with natural selection as the most popular theory. Scientists also study other kinds such as mutation, genetic drift, and sexual selection.
While many scientific fields of study are in conflict with literal interpretations in religious texts, the concept of evolution biology has been a subject of intense controversy and opposition from religious fundamentalists. While certain religions have managed to reconcile their beliefs with the notions of evolution, others have not.