1. The circulatory system

2. The Circulatory System Circulatory SystemThe Heart The circulatory system is a system that helps you breathe and without the circulatory system you wont be even in this world cause you wont be able to breathe cause you’ll be dead. The heart is a system that is connected to the circulatory system cause the heart helps you breathe and that is the main organ in your body. If you didn’t have a heart you wont even be in this world at all cause you’ll be dead cause your not alive and you need the heart to stay alive.

3. The Circulatory System  The circulatory system is a system that helps you breathe cause the red blood cells carry oxygen to the heart and back.  The heart is the main organ in your body. That helps you breathe and without that organ you wont even be alive cause you wouldn’t have oxygen to breathe that’s why the heart is the main organ.

4. The circulatory system That is a system that carries red blood cells to the heart and back it works and works and never stops working at all.

5. The Circulatory Is a system that helps you breathe and without that system you wont even be alive right now. The heart is a main organ in your body that is connected to the circulatory system and if you didn’t have a heart you wont be in this world nobody will actually not animals, or people well plants I don’t know but animals and people I do know.

6. The Circulatory System Breathing System The circulatory system is a system that helps you breathe. The heart system is actually a organ but it is a system at the same time cause it helps you breathe. The heart is a main organ in your body and this system is called the CIRCULATORY SYSTEM!