Programmed Cell Death, Regeneration, Aging (2C) Practice Test

In a skin wound model, a topical factor increased the fraction of basal epidermal stem cells entering the cell cycle during the first week after injury. Wounds closed faster, but the healed tissue showed abnormal hair follicle density compared with controls. Based on the vignette, which conclusion is most consistent with regeneration?

A cancer therapy candidate increased tumor cell death in vitro. In vivo, treated tumors shrank, but histology showed extensive immune cell infiltration and elevated serum inflammatory markers. Tumor sections showed heterogeneous areas of cell swelling and membrane rupture rather than discrete apoptotic bodies. Which statement best describes the role of apoptosis in this context?