discuss lamarck's principle of use and discuss of organs gift to relative examples
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Jean Baptuse lamarck propose that morphological changes occurring in living organisms are responsible for evolution and the reason behind those morphological evidence is activities or laziness of that organisam he called this concept as principle of use and disuse of organ further he said that the neck of Giraffe has become too long due to browsing on leaves of tall plants by extending their neck for several generation similarly shoulders of the ironsmith have become very strong due to frequent hammering movements wings of birds like ostrich and emu have become weak due to no use legs of birds like swan and duck have become useful for swimming due to living in water and snakes have lost their legs by modification in their body of for burrowing habits all these example are type of acquired character and data transfer from one to another generation this is called theory of Inheritance of acquired character or lamarckism
lamarck lamarck is best known for his theory of inheritance of of acquired characteristics first presented in 1801. if an organism changes during its life in in order to adapt to its environment those changes are passed on its offspring.
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