Which of the following is an example of an organ system? A. a human bladder storing waste for removal from the body B. a plant's roots absorbing water and minerals from soil C. the living material that lines the inside of a cheek D. a heart, arteries, and veins all working together
D. a heart, arteries, and veins all working together
D. a heart, arteries, and veins all working together
The correct answer is D. a heart, arteries, and veins all working together.
To determine which of the options is an example of an organ system, we need to understand what an organ system is. An organ system is a group of organs that work together to perform specific functions.
Option A describes the human bladder, which is an organ in the urinary system responsible for storing urine. While the bladder is part of an organ system (the urinary system) it is not an example of an entire organ system itself.
Option B describes a plant's roots, which are responsible for absorbing water and minerals from the soil. While roots play a crucial role in a plant's survival, they are not considered an organ system.
Option C refers to the living material that lines the inside of a cheek, which is known as the oral mucosa. While it is an example of a specific type of tissue, it is not an organ system.
Option D describes a heart, arteries, and veins all working together. This is an example of the circulatory system, which is a complex network of organs and blood vessels responsible for transporting oxygen, nutrients, and waste products throughout the body. The heart pumps blood through the arteries and veins, allowing the circulatory system to function as a coordinated organ system.
Therefore, the correct answer is D. a heart, arteries, and veins all working together.