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Explain the Lamarck's Theory in evolution?
Prior to Darwin, most people believed in and held to the creationist viewpoint that species were created in their current forms, which have not changed. In 1809, Jean Baptiste Lamarck proposed a new theory of evolution. He used the fossil record to explain how different adaptations arose.
Lamarck's theory incorporated the following ideas. He thought that organisms had an "inner need" to become better adapted to their environments. This, he thought, would explain the trend that organisms had toward greater and greater complexity observed in the fossil record. Secondly, Lamarck, along with others, felt that organisms are able to gradually lose characteristics that were not used over time, and further, that they could develop those characteristics that were "needed" to aid in their survival. Lastly, Lamarck thought that these newly acquired characteristics, or traits, could be passed on to future generations - this came to be known as the inheritance of acquired traits.
Today, of course, we know that there is no evidence that supports Lamarck's theory. Increasing muscle mass and strength by exercise does not alter the gene that carries that trait. This means that a runner who trains and develops running prowess is not able to pass on acquired increased muscle mass and strength to his or her offspring. Although Lamarck's Theory was ultimately replaced, Lamarck is still credited with formulating a plausible theory that was accepted by many.
Explain about the course of events during spontaneous blinking. Course of Events during Spontaneous Blinking: Given ate the course of events which take place in the
How does refrigeration help to stop food from going bad? Western diets are often unhealthy due to they have too much sugar and fat, and not sufficient fibre.
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Personal Protective Equipment These equipments are essentially required during working to protect face, eyes, respiratory system hands and clothes. Additionally in various in
Q. Complications Causes by gastro oesophageal reflux disease? Apart from the symptoms, which you have just read above, there are a few extra oesophageal manifestations of GERD.
Why do you think it is necessary for physicians to have so many different terms that describe fractures (compound, comminuted, transverse, greenstick, etc.)?
why we add some sodium bicarbonate in water?
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#questitypes of plant breeding on..
What is Deletion of cell? A deletion is simply when a tip or fragment of a chromosome breaks off and fails to reattach itself to the chromosome from which it came. The gene, or
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