Question

make the connection: your heart is dependent on oxygen from your respiratory system, and it is delivered by the (1 point)
∘ circulatory system.
∘ respiratory system.
∘ muscular system.
∘ nervaus system.

Explanation:

Oxygen from the respiratory system is transported to the heart via blood vessels, which are part of the circulatory system. The circulatory system's role is to deliver oxygen and nutrients throughout the body, including to the heart.

Answer:

A. circulatory system.