The transportation system in multi-cellular organisms facilitates the movement of waste from individual cells to the specialized excretory tissues for disposal.
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The transportation system, particularly the circulatory system in animals, plays a crucial role in excretion by facilitating the transport of waste products to excretory organs for elimination. In animals, blood carries metabolic waste such as urea and carbon dioxide from cells to specialized excretory organs, such as the kidneys and lungs. These organs filter and remove waste, and the circulatory system transports the purified blood back to the cells. The circulatory system ensures the efficient and systematic removal of waste, maintaining the internal balance and overall health of the organism by supporting the excretory functions of specific organs within the body.