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

The correct answer is circulatory system. The circulatory system is responsible for delivering oxygenated blood, which contains oxygen, to the heart through the blood vessels. This oxygen is then used by the heart to pump blood and provide oxygen to the rest of the body.