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Cell division and tissue re-organization in intact earthworms and in 2- and 4-week anterior blastema. The blastema is marked by a dashed line. Representative images were chosen from five independent experiments. Arrows point to the EdU-positive cells (green). Asterisks mark the reorganized actin filaments (red) in the blastema. The level of amputation is indicated by a dashed line Scale bars: 200 μm.
