Internal profiles of K, the thermal diffusivity, D_conv, the convective diffusion coefficient, D_shear, the shear diffusion coefficient, D_h, the horizontal turbulence coefficient, and D_eff, the effective diffusivity in 15 M_⊙ models at solar metallicity. Each panel is labeled with a letter corresponding to the first column of Table 1. The profile is taken when the central mass fraction of hydrogen X_c = 0.35.