State Lamarck"s Theory of Evolution. | web4study

State Lamarck”s Theory of Evolution.



 

LAMARCKISM OR LAMARCK’S THEORY OF EVOLUTION:

J.B. Lamarck (1744 – 1829),. a French biologist proposed that organisms modify their bodies through use or disuse of organs and these modifications can be Inherited by the portents to their offspring’s.

According to him the continuous -use of any organ would develop that organ while disuse would result in gradual weakening and its ultimate reduction and disappearance in the subsequent generations. Such characters were termed as acquired characters. This idea about the evolution is known as Lamarck’s theory of evolution or Lamarckism.


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