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When people exercise, their body cells build up more waste quickly. Which two body systems work
together to remove these wastes from their cells?
(1) immune and endocrine (3) respiratory and circulatory
(2) digestive and skeletal (4) circulatory and digestive


Sagot :

The Immune system and Endocrine system work together to remove these wastes from their cells.
Answer is (3),When people exercise,carbon dioxide is produce which is transported by the circulatory system to the lung where it is remove.The lung form part of the respiratory system.