Eimer also believed in Lamarckian inheritance of acquired characteristics, but he felt that internal laws of growth determine which characteristics would be acquired and guided the long term direction of evolution down certain paths.
Eimer tamén cría na herdanza lamarckista dos caracteres adquiridos, pero consideraba que as leis internas do crecemento determinaban que caracerísticas serían adquiridas e guiadas na dirección a longo prazo da evolución seguindo certos camiños.