The fact that neutrinos have mass and can oscillate from one flavor to another has opened up new windows on the universe.  These windows require ambitious programs that send beams of neutrinos to detectors located hundreds or thousands of kilometers from the source.  These programs need to infer not only the flavor but also the energy of the neutrinos that interact in the detectors.  The signal and background processes and the energy produced by neutrinos in these experiments depend critically on the nucleus where the interactions occur.  The MINERvA experiment is a dedicated neutrino cross section experiment that has made measurements of a wide variety of neutrino interactions on a wide variety of nuclei.  This talk will describe recent results from the MINERvA experiment, and explain how the ensemble of these measurements is giving us a hint as to what is happening in the nucleus when neutrinos interact, which ultimately will help us better understand neutrino mass and mixing.