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| Description: Hematopoiesis: Blood cells are formed from stem cells under the influence of hormones such as thrombopoietin, colony-stimulating factors, and erythropoietin. Picture Stats: Views: 431 Filesize: 226.35kB Height: 1427 Width: 1292 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=28633 |