An Introduction to Evolution Essay -- Evolution Science Biology Essays

An installation to EvolutionWhat is Evolution? Evolution is the process by which all animateness thingshave true from primitive organisms through with(predicate) changes occurring over billionsof geezerhood, a process that includes all animals and plants. Exactly how phylogenyoccurs is still a matter of debate, but there be umteen different theories andthat it occurs is a scientific fact. Biologists twin that all living thingscome through a long history of changes shaped by physical and chemical substance processesthat are still taking purport. It is doable that all organisms arouse be taildback to the origin of Life from one celled organims.The most direct proof of evolution is the science of Paleontology,or the study of look in the past through fossil the Great Compromiser or impressions, usuallyin rock. Changes occur in living organisms that serve to increase theiradaptability, for survival and reproduction, in changing environments. Evolutionapparently has no built -in direction purpose. A given kind of organism mayevolve only when it occurs in a variety of forms differing in hereditary traits,that are passed from parent to offspring. By chance, some varieties splay to beill vary to their current environment and thus disappear, whereas othersprove to be adaptive, and their numbers increase. The elimination of the unfit,or the survival of the fittest, is known as Natural Selection because it isnature that discards or favors a particular being. Evolution takes place onlywhen natural selection operates on apopulation of organisms containing diverseinheritable forms.HISTORYPierre Louis Moreau de Maupertuis (1698-1759) was the first topropose a general theory of evolution. He give tongue to that hereditary material,consisting of particles, was transmitted from parents to offspring. His opinionof the part played by natural selection had little influence on othernatural scientists.Until the mid-19th century, naturalists believed that each species was created separately, either through a supreme being or through spontaneousgeneration the concept that organisms arose fully developed from shite or water.The work of the Swedish naturalist Carolus Linnaeus in advancing the classifyingof biological organisms focused attention on the close similarity betweencertain species. possibility began as to the existence of a material body of bloodrelationship between... ...y different. For example, the wing of a bird and the wing of abutterfly are analogous some(prenominal) are used for flight, but they are entirelydifferent structurally. Analogous structures do non indicate evolutionaryrelationships.Closely related fossils preserved in continuous successions of rockstrata have allowed evolutionists to trace in detail the evolution of manyspecies as it has occurred over several million years. The ancestry of the horsecan be traced through thousands of fossil remains to a small terrier-sizedanimal with four toes on the front feet and t hree toes on the hind feet. Thisancestor lived in the Eocene Epoch, about 54 million years ago. From fossils inthe higher layers of stratified rock, the horse is found to have graduallyacquired its modern form by in the end evolving to a one-toed horse almost exchangeablemodern horses and finally to the modern horse, which dates back about 1 millionyears.CONCLUSION TO EVOLUTIONAlthough we are not totally certain that evolution is how we got the lookwe are now, it is a strong belief among many people today, and scientist arefinding more and more conclusion to back up the evolutionary theory. An Introduction to Evolution Essay -- Evolution Science Biology EssaysAn Introduction to EvolutionWhat is Evolution? Evolution is the process by which all living thingshave developed from primitive organisms through changes occurring over billionsof years, a process that includes all animals and plants. Exactly how evolutionoccurs is still a matter of debate, but there are ma ny different theories andthat it occurs is a scientific fact. Biologists agree that all living thingscome through a long history of changes shaped by physical and chemical processesthat are still taking place. It is possible that all organisms can be tracedback to the origin of Life from one celled organims.The most direct proof of evolution is the science of Paleontology,or the study of life in the past through fossil remains or impressions, usuallyin rock. Changes occur in living organisms that serve to increase theiradaptability, for survival and reproduction, in changing environments. Evolutionapparently has no built-in direction purpose. A given kind of organism mayevolve only when it occurs in a variety of forms differing in hereditary traits,that are passed from parent to offspring. By chance, some varieties prove to beill adapted to their current environment and thus disappear, whereas othersprove to be adaptive, and their numbers increase. The elimination of the unfit,or th e survival of the fittest, is known as Natural Selection because it isnature that discards or favors a particular being. Evolution takes place onlywhen natural selection operates on apopulation of organisms containing diverseinheritable forms.HISTORYPierre Louis Moreau de Maupertuis (1698-1759) was the first topropose a general theory of evolution. He said that hereditary material,consisting of particles, was transmitted from parents to offspring. His opinionof the part played by natural selection had little influence on othernaturalists.Until the mid-19th century, naturalists believed that each specieswas created separately, either through a supreme being or through spontaneousgeneration the concept that organisms arose fully developed from soil or water.The work of the Swedish naturalist Carolus Linnaeus in advancing the classifyingof biological organisms focused attention on the close similarity betweencertain species. Speculation began as to the existence of a sort of bloodrelat ionship between... ...y different. For example, the wing of a bird and the wing of abutterfly are analogous both are used for flight, but they are entirelydifferent structurally. Analogous structures do not indicate evolutionaryrelationships.Closely related fossils preserved in continuous successions of rockstrata have allowed evolutionists to trace in detail the evolution of manyspecies as it has occurred over several million years. The ancestry of the horsecan be traced through thousands of fossil remains to a small terrier-sizedanimal with four toes on the front feet and three toes on the hind feet. Thisancestor lived in the Eocene Epoch, about 54 million years ago. From fossils inthe higher layers of stratified rock, the horse is found to have graduallyacquired its modern form by eventually evolving to a one-toed horse almost likemodern horses and finally to the modern horse, which dates back about 1 millionyears.CONCLUSION TO EVOLUTIONAlthough we are not totally certain that e volution is how we got the waywe are now, it is a strong belief among many people today, and scientist arefinding more and more evidence to back up the evolutionary theory.