Fig. 1
From: What frog gill resorption brings: loss of function, cell death, and metabolic reorganization
Structural characteristics of the gills in different developmental stages. A Schematic diagram showing the sampling stages of this study. B Histological characteristics of the gills (n = 3 each stage), the red arrows indicating the gill filaments. C Ultrastructural characteristics of the gills, BV blood vessel, M mitochondria, Mv microvillus, N cell nucleus