Continuum and molecular fluxes (above 3σ) as a function of T_bol (left) and L_bol (right). The gray dashed line represents T_bol = 70, the separation between Class 0 and Class I sources, while the black solid line in the last two panels of the right column indicates L_bol = 1 L_⊙. Red circles represent multiple systems (binaries or triples) where the continuum ALMA emission is resolved but they do not have individual T_bol and L_bol measurements from far IR. Blue circles indicate unresolved binaries in continuum ALMA emission.