Q. 4 A4.3( 120 Votes )
Lamarckism is the first theory of evolution which was proposed by Jean Baptiste de Lamarck. It believes that change in environment brings about change in the external characters of the organisms. This happens due use of some organs more and some organ less. The characters which are acquired by the organisms, they pass on to the next generation.
Example explaining Lamarck’s theory: The neck of giraffe has become too long due to feeding on leaves of tall plants by extending their neck for several generations.
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