A theory of biological evolution holding that physical changes that occur in an organism through purposeful use and disuse of body parts are inherited by its offspring.
A theory of organic evolution advanced by Lamarck that claimed acquired characters can be inherited.
A theory of biological evolution holding that the changes occurring in an organism through use and disuse of its body parts in response to environmental change are inherited by its offspring.
Origin of lamarckism
After Chevalier de Jean Baptiste Pierre Antoine de Monet Lamarck