Variation in [Fe/H] (solid lines, top of all subplots) and [M/H] (dashed lines, top of all subplots), and evolution of the convective envelope mass divided by the total mass of the model (bottom of all subplots) from the ZAMS to the tip of the RGB for [Fe/H]_i = 0.06. The red and blue lines represent models with and without radiative acceleration. Top panels: are for 0.7 M_⊙ models, middle panels: for 1.0 M_⊙ models, and bottom panels: for 1.4 M_⊙ models.