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| Description: Integumentary system Excess calories may be stored as insulating fat in the hypodermis; absorbed copper is used in making melanin. Skeletal system Absorbed calcium and phosphorus are major components of bone tissue. Picture Stats: Views: 335 Filesize: 375.05kB Height: 605 Width: 792 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=42943 |