1=Jean-baptiste lamarck proposed that morphological changes occurring in theorganisms are responsible for evolution
2=The reasons behind those morphological changes is activities or laziness of that organism
3=for example shoulder of the iron Smith have become very strong due to frequent hammering moments
4=wings awards be like horse ostrich and mu have become weak due to no use legs of birds like swan and dog have become useful for swimming due to living in water
5=these examples of the types of acquired characters and are transfer from one to another generation
this is called theory of inheritance of acquired characters or lamarckism.
