Evolution is a process of gradual change. The word evolution may refer to various types of change, but most commonly refers to the formation and development of life on earth. The idea that living things evolved from non-living matter and changed through the ages is called the theory of evolution. According to this theory, the first single-celled organisms appeared about 3 or 4 billion years ago, soon after the earth's crust had formed and cooled. As time passed, more complex organisms gradually developed specialized characteristics that helped them adapt to their environment. The evolutionary process eventually produced all the species that exist on the earth today.
Most evolutionary changes occur too slowly to be observed directly. Scientists, however, have found much evidence to support the theory of evolution from various sources like fossils, adaptations in organisms, comparative studies of species and embryology. Fossils provide the most direct evidence of evolution. Scientists are able to determine the age of fossils by means of radioactive dating. The fossil record has many gaps because only relatively few species were preserved in fossils. However, scientists have found enough fossils to document much of the history of life on the earth. Many fossils reveal different stages in the evolution of life from simple organisms to progressively more complex species. Some of the oldest fossils are imprints of one celled organisms. More recent fossils disclose a variety of species with increasingly complex adaptations. Horses are among the best-documented examples of evolutionary development. Fossils show many stages in the evolution of the horse. .
According to the theory of evolution, changes in an environment may cause organisms to develop various adaptations. During most of the earth's history, environmental changes have occurred in gradual stages that have lasted hundreds of years. Since the 1800's, however, the environment has changed at a much faster rate.
What is evolution? ... Evolution also has two subunits which can be divided into micro evolution and macro evolution. The kind of evolution documented above is micro evolution. ... I think the difference between the two is senseless because macro evolution is cumulative micro evolution. ... The word evolution has many different meanings. ...
Evolution The origins of mankind is an extremely controversial issue within today's society. ... One such argument is the conflict involving the theory of evolution versus the theory of creation. After extensive scientific research, it is apparent that the theory of evolution is correct. ... Similarities in these categories link species together and are therefore studied to support evolutionism. ... Darwin proposed that evolution occurred as the result of natural selection. ...
Evolution Evolution is the change that species undergo over time. ... Evolution can be found in fossil records and chemical and structural similarities. ... Probably the most popular evidence for evolution is the numerous fossils found over time. ... Therefore, evolution will have occurred. ... The most popular piece of evidence for evolution are the fossil records. ...
Discussion Assignment # 2, Topic 2 Conflicts between scientists and nonscientist's beliefs of evolution are nothing new to the scientific community. Scientists spend years solely on the research of evolution theories to provide evidence for evolution. This enables them to present facts and defend evolution as a truth. However, showing clear-cut evidence to a nonscientist that evolution exists still presents a major problem. ... Archeological fossils have been found that creates some evidence that points to more or less evolution. ...
Today's human being is the product of millions of years of trial and error through the process of evolution. Charles Darwin was the first to bring fourth the idea of evolution. ... Evolution is the most logical explanation for mans place on earth. ... Almost all scientists believe in some sort of evolution, though they may not agree on all the details they all agree that evolution is the reason for mans place on earth. ... Even with all the proof pointing towards evolution the majority of the world still believes in spontaneous creation by God. ...
The Theory of Evolution The theory of evolution creates tremendous controversy in today's society. Anything as controversial as the creation/evolution debate is bound to generate a diversity of opinions. ... I believe the theory of evolution should be banned from educational courses because of religious conflict. ... Much evidence can be provided against the theory of evolution. ... Evolution supports the idea that humans and apes evolved from a single common ancestor. ...
Creationists say that the evolution theory is biased and incomplete. ... The process of evolution, which all living things developed from unicellular organisms, over billions of years Exactly how evolution occurs is still debated but it is a scientific fact that it does occur. ... Evolution apparently has no built-in direction or purpose. ... It is clear that evolution is much clearer to understand and accept than the creationism theory. There will always be people who will still be curious as to how we appeared on the earth, and some people will oppose the evolution theory, therefore, the evo...
Theory of Evolution Today's human being is the product of millions of years of trial and error through the process of evolution. Charles Darwin was the first to bring fourth the idea of evolution. ... Evolution is the most logical explanation for mans place on earth. ... Almost all scientists believe in some sort of evolution, though they may not agree on all the details they all agree that evolution is the reason for mans place on earth. ... Even with all the proof pointing towards evolution the majority of the world still believes in spontaneous creation by God. ...
Today's human being is the product of millions of years of trial and error through the process of evolution. Charles Darwin was the first to bring fourth the idea of evolution. ... Evolution is the most logical explanation for mans place on earth. ... Almost all scientists believe in some sort of evolution, though they may not agree on all the details they all agree that evolution is the reason for mans place on earth. ... Even with all the proof pointing towards evolution the majority of the world still believes in spontaneous creation by God. ...
Theory of Evolution Today's human being is the product of millions of years of trial and error through the process of evolution. Charles Darwin was the first to bring fourth the idea of evolution. ... Evolution is the most logical explanation for mans place on earth. ... Theory of Evolution Today's human being is the product of millions of years of trial and error through the process of evolution. ... Evolution is! ...
