Which statement is true? (1 point)
Bones are organ systems.
O Bones provide shape to the body.
Bones are composed of a single layer.
Bones help the heart pump blood.
Bones provide shape to the body.
The correct statement is: Bones provide shape to the body.
To determine which statement is true, let's evaluate each statement one by one:
1. "Bones are organ systems."
This statement is not true. Bones are not considered organ systems. Organ systems refer to a group of organs working together to perform specific functions in the body, such as the cardiovascular system or the respiratory system. While bones are indeed part of the skeletal system alongside other components like ligaments and cartilage, they don't constitute an entire organ system on their own.
2. "Bones provide shape to the body."
This statement is true. One of the primary functions of bones in the body is to provide structure, support, and shape. Bones act as the framework upon which other body tissues and organs are attached.
3. "Bones are composed of a single layer."
This statement is not true. Bones are complex structures comprising multiple layers. On the outside, bones have a hard, dense layer called compact bone. Inside, there is a spongy, porous layer known as cancellous bone. The combination of these layers gives bones their strength and flexibility.
4. "Bones help the heart pump blood."
This statement is not true. The pumping of blood is primarily the responsibility of the heart, which is a muscular organ specifically designed to perform that function. While bones have marrow within them that produces blood cells, and some bones may store minerals like calcium, their role in the circulatory system is indirect and supportive, rather than directly involved in pumping blood.
In conclusion, the only true statement among the given options is "Bones provide shape to the body."