  This paper concerns with a mathematical modelling of biological experiments,
and its influence on our lives. Fractional hybrid iterative differential
equations are equations that interested in mathematical model of biology. Our
technique is based on the Dhage fixed point theorem. This tool describes mixed
solutions by monotone iterative technique in the nonlinear analysis. This
method is used to combine two solutions: lower and upper. It is shown an
approximate result for the hybrid fractional differential equations iterative
in the closed assembly formed by the lower and upper solutions.
