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Introduction of the term lamarckism

Give a brief introduction of the term lamarckism?

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Lamarckism is theory which unites the law of use and disuse with law of the transmission of obtained characteristics, that is, that asserted which acquired characteristics, for illustration, the muscular mass, could be transmitted from the parent to its offspring.

The theory was formed by the French naturalist Lamarck in starting of 19th century. At that time the idea was not so ridiculous because nobody knew how the transmission of  the hereditary condition taken place. (Lamarck had great merit in introducing an evolutionary theory based in the natural law at a time dominated by the fixism.)

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