{"version":"1.0","type":"link","title":"Excretion - Newikis","description":"Excretion is elimination of metabolic waste, which is an essential process in all organisms. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. For example, placental…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/6/61/Urinary_System_Large_Unlabeled.jpg/1280px-Urinary_System_Large_Unlabeled.jpg","thumbnail_width":1280,"thumbnail_height":1732}