what is the difference between biomass and flow in a mixed effect model? distance in a mixed effects how is the solute concentration model constructed how to calculate solute concentration in a stream what is the difference between biomass and flow how does solute concentration differ in the mixed effects model what is the model for solute concentration what is the model for solute concentration in streams how many sample sessions are there ______________ is true about the sampling sessions and the sampling session when to use a nested mixed effects model what measures the solute concentration within each sampling session? which variable is an example of covariate between a session in mixed modelling? what is the function of the solute mass how to model solute concentration how to model solute concentration how to model solute concentration for the environment how to model biomass as a function of distance and volume how to predict the direction of the a sampling session how long is the random intercept