An organ system is a group of organs that work together to perform a specific function in the body. Among the options you provided, the one that represents an organ system is:
D: the heart, the stomach, and intestines.
This is because the heart is part of the circulatory system, while the stomach and intestines are part of the digestive system. However, note that the heart and intestines do not work as a single system together, but it’s the only option that mentions organs that belong to specific organ systems.
If we look for combinations that form coherent systems:
- A (the liver, blood, and skin): Not an organ system.
- B (the heart, arteries, and veins): This comprises the cardiovascular system (heart and blood vessels).
- C (the liver, bladder, and heart): Not an organ system.
So, while B (the heart, arteries, and veins) is the most clearly defined organ system (the cardiovascular system), it seems like there might be some confusion with the original question context. B might be the intended correct answer related to organ systems since it focuses on one system cohesively.