Blueprint of Life
The French Naturalist Jean Baptiste Lamarck pronounced the first comprehensive theory of evolution in the beginnings of the 19th century. His theory, the theory of acquired characteristics, had three parts and is as follows:1) Theory of need- the production of a new organ or part of a plant or animal results from a need 2) Theory of use and disuse- organs remain active as long as they are being used but disappear gradually with disuse 3) Theory of inheritance- all that has been acquired or changed in the structure of individuals during their life is transmitted by heredity to the next generation. He believed evolution took place over a very long period of time. Lamarck also divided animal life into the categories of vertebrates and invertebrates. The contributions of Lamarck are worth considering, not because he successfully accounted for the process of evolution, since his ideas have never been supported by evidence, but because he at least provided a plausible theory for the multiplicity of forms of living things. His work attempted to change how people of the time thought about themselves and their origins by challenging the popular belief in creationism. Lamarck’s real contribution to scien
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Some common words found in the essay are:
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Approximate Word count = 1316
Approximate Pages = 5 (250 words per page double spaced)
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