Caption: A cartoon of the stellar structures of representative stars showing radiative zones and convection zones. The stars are from 3 approximate stellar mass ranges: M ∈[0.075 M_☉, 0.5 M_☉]), M ∈[0.5 M_☉, 1.5 M_☉]), M ∈[1.5 M_☉, ∞].

The loops represent convection and the zigzag arrows represent radiative transfer.