Diagnostic diagrams obtained considering only emission lines with rest frame wavelength λ ≤ 5007Å for the emission line galaxies in the SDSS/DR7. The blue and red dots represent the location of Seyferts/HEGs and LINERs/LEGs, respectively, selected based on their location in the [O III]/Hβ versus [S II]/Hα diagram. The green contours are the iso-densities of the location of SF galaxies. The diamonds are the 26 3C at 0.3 < z < 0.82 observed with MUSE. The black filled diamonds are the izRGs classified as HEGs, the diamonds surrounding a cross are the BLOs, while the red ones are the LEGs.