The previous case study demonstrated ALMA’s capability to reveal the earliest stages of star formation within a 70 µm dark clump. Building on this result, the present chapter extends the analysis to 39 regions and investigates the physical properties of dense cores, addressing the key questions raised in Chap. 1. It investigates the maximum core mass, spatial distribution, fragmentation, and core mass functions, which are fundamental parameters for characterizing the structure and evolution of cluster-forming regions. The results provide evidence for ongoing core growth and support the clump-fed scenario for high-mass star formation.