에볼루션 바카라 - Teaching About Evolution
Despite the best efforts by biology educators, misconceptions persist about evolution. People who have been exposed to popular science myths often assume that biologists are saying they do not believe in evolution.
This rich Web site, a companion to the PBS program offers teachers resources which support evolution education while avoiding the types of misconceptions which make it difficult to understand. It's laid out in a "bread crumb" format to make navigation and orientation easier.
Definitions
Evolution is a complicated and difficult subject matter to teach well. Many non-scientists are unable to grasp the concept, and some scientists even use a definition that confuses it. This is particularly true when discussing the definition of the words.
It is therefore crucial to define the terms that are used in evolutionary biology. Understanding Evolution's website helps you define these terms in an easy and helpful way. It is a companion for the 2001 series, and it is also a resource on its own. The content is presented in a way that aids navigation and orientation.
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. 에볼루션바카라사이트 provides an overview of how the concept of evolution has been researched and validated. This information can be used to dispel misconceptions 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 the result of natural selection. It occurs when organisms with more adaptable traits are more likely to survive and reproduce than those with less adaptable characteristics.
Common ancestor: The most recent common ancestor of two or more different species. By analyzing DNA from these species it is possible to determine the common ancestor.
Deoxyribonucleic acid: A large biological molecule that holds the information required for cell replication. The information is stored in nucleotides arranged in sequences that are strung together into long chains, called chromosomes. Mutations are the source of new genetic information within cells.
Coevolution is a relationship between two species in which the evolutionary changes of one species influence evolutionary changes in the other. Examples of coevolution are the interactions between predator and prey, or host and parasite.
Origins
Species (groups that can crossbreed) change through a series natural changes in their offspring's traits. The causes of these changes are many factors, such as natural selection, gene drift and mixing of the gene pool. The evolution of a new species may take thousands of years and the process may be slowed down or speeded up due to environmental conditions, such as climate change or the competition for food or habitat.
The Evolution site follows the evolution of different groups of animals and plants with a focus on major changes in each group's past. It also explores the evolutionary origin of humans and humans, a subject that is especially important for students to comprehend.
When Darwin wrote the Origin of Species, only a handful of antediluvian human fossils had been found. The famous skullcap, along 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 before the first edition of the Origin appeared, it is extremely unlikely that Darwin had seen or heard of it.
While the site focuses on biology, it also offers a lot of information on geology and paleontology. The most impressive features on the site are a series of timelines that illustrate the way in which climatic and geological conditions changed over time, and an interactive map of the distribution of a few fossil groups listed on the site.
The site is a companion to the PBS television series, but it can be used as a resource for teachers and students. The site is well-organized, and provides clear links to the introductory material of Understanding Evolution (developed under the National Science Foundation's funding) and the more specific features on the museum's website. These hyperlinks make it easier to transition from the cartoon-style Understanding Evolution pages into the more sophisticated realms of research science. There are links to John Endler's experiments with guppies, which 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 geological context and has numerous advantages over modern observational and experimental methods of examining evolutionary phenomena. Paleobiology is able to study not just the processes and events that happen regularly or over time but also the distribution and frequency of different groups of animals in space over the course of the geological time.
The website is divided into a variety of pathways to understanding evolution which include "Evolution 101," which takes the viewer on a line through the nature of science and the evidence supporting the theory of evolution. The path also explores misconceptions regarding evolution, and the background of evolutionary thinking.
Each of the main sections on the Evolution website is equally well-developed, with materials that support a variety levels of curriculum and teaching methods. The site includes a variety of multimedia and interactive resources that include video clips, animations and virtual laboratories as well as general textual content. The content is presented in a nested bread crumb-like fashion that helps with navigation and orientation on the Web site.
For example the page "Coral Reef Connections" provides a comprehensive overview of the relationships between corals and their interaction with other organisms, then zooms in on a single clam that is able to communicate with its neighbors and respond to changes in the water conditions at the reef level. This page, as well as the other multidisciplinary interactive and multimedia pages provides an excellent introduction to many topics in evolutionary biology. The material includes an overview of the significance of natural selectivity and the concept of phylogenetics analysis as a key tool to understand evolutionary change.
Evolutionary Theory
For biology students the concept of evolution is a major thread that binds all the branches of the field. A wide selection of resources helps teachers teach evolution across the disciplines of life sciences.
One resource, the companion to PBS's television show Understanding Evolution is an excellent example of an Web site that provides the depth and the broadness in terms of educational resources. The site has a wide array of interactive learning modules. It also has a "bread crumb structure" that helps students move away from the cartoon-like style of Understanding Evolution and onto elements on this large website more closely connected to the realms of research science. For example an animation that introduces the idea of genetic inheritance connects to a page that highlights John Endler's experiments in artificial selection using guppies in the ponds of his native country of Trinidad.
Another resource that is worth mentioning is the Evolution Library on this Web site, which has an extensive library of multimedia items related to evolution. The content is organized according to curricula-based paths that correspond to the learning goals set forth in the standards for biology. It contains seven videos that are designed for use in classrooms. These are available to stream or purchase as DVDs.
Evolutionary biology is still an area of study that poses many important questions, including what triggers evolution and how fast it happens. This is particularly true in the case of human evolution where it was a challenge to reconcile religious beliefs that held that humans have a distinct position in the universe and a soul, with the notion that our physical traits originated from apes.
There are a variety of other ways evolution can occur, with natural selection as the most widely accepted theory. However, scientists also study other kinds of evolution, such as mutation, genetic drift and sexual selection, among others.
Many fields of inquiry 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 ideas of evolution, other religions aren't.