  High energy lepton scattering has been the primary tool for mapping out the
quark distributions of nucleons and nuclei. Data on the proton and deuteron
have shown that there is a fundamental connection between the low and high
energy regimes, referred to as quark-hadron duality. We present the results of
similar studies to more carefully examine scaling, duality, and in particular
the EMC effect in nuclei. We extract nuclear modifications to the structure
function in the resonance region, and for the first time demonstrate that
nuclear effects in the resonance region are identical to those measured in deep
inelastic scattering. With the improved precision of the data at large $x$, we
for the first time observe that the large-x crossover point appears to occur at
lower $x$ values in carbon than in iron or gold.
