To retrieve data on genetic variation in responses to fertilization and simulated herbivory in Arabidopsis, Use the lme4 package, we can call this data set with the command:

data(Arabidopsis).

1. Use the "lmer" function to then fit your proposed model to the data. Provide residual plots and statistical conclusions regarding extrapolating this model to other data points. Then explain what effects there are, and whether they are random or fixed.
2. Explain the mathematical meaning behind each for the input parameters to the "lmer" function.