the circulatory system works closely with the respiratory system to...\nregulate body temperature.\npick up…

the circulatory system works closely with the respiratory system to...\nregulate body temperature.\npick up carbon dioxide and drop off oxygen waste.\ncarry the chemical messengers called hormones.\npick up oxygen and drop off carbon dioxide waste.

the circulatory system works closely with the respiratory system to...\nregulate body temperature.\npick up carbon dioxide and drop off oxygen waste.\ncarry the chemical messengers called hormones.\npick up oxygen and drop off carbon dioxide waste.

Answer

Brief Explanations:

The respiratory system takes in oxygen and expels carbon - dioxide. The circulatory system then transports oxygen to body cells and picks up carbon - dioxide from them to be exhaled by the respiratory system.

Answer:

pick up oxygen and drop off carbon dioxide waste.