Choose 3 body systems. Identify 3 major organs in the body system, write 2 functions of each body system and explain how those body systems might interact with each other.

Two systems that work very closely together are our cardiovascular and respiratory systems. The cardiovascular system includes your heart and blood vessels, which function to remove de-oxygenated blood from and return oxygenated blood throughout your body.

Explanation:

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the answer is a) cell division.

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