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How are the respiratory and circulatory systems similar? (5 points)
a-Both systems provide glucose and other substances to cells.
b-Both systems regulate blood flow throughout the body.
c-Both systems send messages to the nervous system for breathing.
d-Both systems help remove carbon dioxide from the body.

Respuesta :

Answer:

D

Explanation:

Because the respatory system Circulates oxygen into the body and blood needs oxygen And the And the circulatory system circulates all the blood in your body Circulatory system circulates all the blood in your body in the works together with the respiratory system.