After running, Ollie’s blood pressure was high. His nervous system sensed this and sent a message to decrease heart rate and blood flow.
Which system worked together with the nervous system?
skeletal system
circulatory system
respiratory system
digestive system
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Answer:
circulatory system
Explanation:
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients
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