Biological Evolution is a scientific theory

Look up Chaos theory might help you in your study of Meteorology //First, biological evolution under the theory occurs very slowly and it is impossible to obtain exact variables and a comparing group through 2 centuries because we cannot live that long// Lets start off with the definition of biological evolution "changes in gene frequencies in populations" Evolution happens every generation not in your own lifespan which means every different species evolves at different rates. Therefore stating it is slow shows how uneducated you are in this field of study. As humans can observe many species evidence shown in Lenski's E. coli Long-term Experiment. You seem to be only looking at the species of sapien? why? Its called Biological Evolution theory not Human Evolution Theory. Why we have Wisdom teeth? Jaws could comfortably accommodate all 32 teeth, including the third molars. You have to go back about 100 million years ago to a gene called MYH16 had a mutations in this gene which lead to shorter jaws. However it happened, the change lessened the amount of space available to teeth in the mouth. But some people never develop wisdom teeth in fact, these teeth don't appear in about 35 percent of the population. http://scienceline.org... http://www.askabiologist.org.uk... http://www.summerleadental.com... Why males have nipples? After three or four weeks, all embryos develop parallel mammary ridges called milk lines before the 23rd chromosomes, XX or XY, have a chance to tinker with sexual dimorphisms, or physical traits that distinguish biological males from females. As fetuses grow, those milk lines that extend from the top of the chest to the lower abdomen recede and typically leave behind a pair of nipples, along with milk-producing glands called lobules, ducts and the fatty tissue in between. Without a protein like PTHrP stepping into action to trigger hormonal roadblocks as it does in mice, human embryos, male and female alike, are given the same set of internal plumbing in the breast region. Then, during puberty, estrogen in girls spurs breast tissue and mammary gland development. Therefore, the simplest explanation for men having nipples is that all human embryos start out with them, and evolution didn't get around to selecting against their existence on the male bust. Since nipples and healthy breast development are so closely linked with female reproductive success, evolutionary biologists suppose that the adaptive pressure to wean out male nipples wasn't strong enough. Why we have cancers? Genetic predisposition to cancer. This means that your genetic make up makes it more likely that you will develop cancer. Is one reason also cancers are all different and can have multiple reasons on how cancer is caused. "Cancer is far from a single well-defined disease which we can identify and eradicate," said Dr Athena Aktipis, Director, Human and Social Evolution, Center for Evolution and Cancer at the University of California, San Francisco. "It is highly diverse and evolutionary theory allows us to consider cancer as a highly complex and evolving ecosystem. This approach can improve the understanding, treatment and prevention of a number of different cancer types." Skin cancer and melanin http://www.ncbi.nlm.nih.gov... To fully understand how and why evolution is scientific, it's important to first know what the generally accepted criteria for scientific theories are. Scientific theories must be: Consistent (internally & externally) Parsimonious (sparing in proposed entities or explanations) Useful (describes & explains observed phenomena) Empirically Testable & Falsifiable Based upon Controlled, Repeated Experiments Correctable & Dynamic (changes are made as new data is discovered) Progressive (achieves all that previous theories have & more) Tentative (admits that it might not be correct rather than asserting certainty) Consistent All evidence supports evolutionary theory and common descent; absolutely no evidence points to anything else. Evolution is also externally consistent: it does not contradict solid findings in any other physical science. If evolution did contradict physics or chemistry, that would be a significant problem. Parsimonious Evolution is naturalistic and does not add unnecessary concepts, entities, or processes to our understanding of the universe. Evolution, which is just genetic change over time, does not rely upon any entities or concepts which do not otherwise exist in any scientific model. Common descent does not require us to imagine anything new or unusual in the universe. This means is the theory of evolution is the simplest and most reliable explanation of the diversity of life on our planet. Everything offered as alternatives requires us to imagine new entities not used or needed in any other scientific model, like gods. Useful Evolution is the unifying principle of the life sciences, which includes medicine. This means that much of what is done in the biological and medical sciences could not occur without the background premise of evolution. I've yet to see any Evolution Deniers willing to give up modern medicine. Evolutionary theory also suggests lots of problems for scientists to work on because it makes predictions which, in turn, provide experiments to perform in order to better understand what's going on in the natural world. Evolution thus provides an overall paradigm for solving current problems within the life sciences. Empirically Evolution has been tested many time in the last 150 years to today from Lenski's experiment, Domestication. EDAR gene, KRTHAP1, FOXP2. Correctable & Dynamic Evolution is based solely on the evidence, thus if the evidence changes so will the theory; in fact, subtle changes to aspects of evolutionary theory can be observed by anyone who regularly reads biology journals and pays attention to the scientific debates. Evolutionary theory today is not quite the same as the evolutionary theory which Charles Darwin originally devised and wrote about, though he was correct enough that much of what he discovered continues to b valid. Since there are gaps in our understanding and evidence, we can expect to see more changes in the future as our understanding expands. Theory is Progressive The idea that a scientific theory should be progressive means that a new scientific theory should build on earlier scientific theories. In other words, a new theory must explain what previous theories explained at least as well as they did while providing a new understanding for additional material " something which evolution does. Another way to see how scientific theories need to be progressive is that they can be shown to be superior to competing theories. It should be possible to compare several explanations for a phenomenon and find that one does a much better job than the others. This is true of evolution.