When does the circulatory system work with the respiratory system? A. During blood cell formation B. During cellular respiration C. During intestinal digestion D. During a viral infection
Biology · Middle School · Mon Jan 18 2021
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B. During cellular respiration
The circulatory system works with the respiratory system during cellular respiration. This is when oxygen is brought into the body and delivered to the cells by the circulatory system, while carbon dioxide, a waste product of cellular respiration, is removed by the respiratory system.