A comparison of two nonlinear models for describing intake-response relationships in higher organisms

Comparison of two nonlinear models for describing intake-response relationships in higher organisms is presented. The first model is based on the assumption that growth processes obey saturation kinetics phenomena while the second model is based on the assumption that the absolute size of the body is the factor which determines the rate of the growth process. Comparison of the two models is illustrated by considering a typical experiment for the evaluation of intake-response relationships.