ABSTRACT
As yet there is relatively little precise information on the relationship between nutrition and differentiation in animals, mainly because of the difficulty in defining differentiation, and so in designing critical experiments and interpreting results. In the tables, the equation is adopted. This implies that differentiation includes all qualitative aspects of development, and growth the purely quantitative aspects. Differentiation + Growth = Develpoement(Morphogenesis ) https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781351072960/997acea5-71eb-4462-aaed-8511371b8f61/content/unequ1_1.tif"/>
