Relationship between physical parameters computed from the SED-fitting based on photometric data only and the strength of Mg_UV computed from the SED-fitting of the spectroscopic data only. From left to right: stellar mass, SFR, and dust extinction. The errors shown on each plot represent the errors on the mean. In each panel we give the evolution for the full sample of 103 galaxies (blue) and also the evolution for the secure sample only (75 galaxies, in red).