Hierarchical Organization of Interacting Systems in a Human's body

2. basic building blocks of all objects.
6. specialized structures that perform various jobs inside cells.
9. made up of specialized cells known as muscle fibers
10. is an organic molecule that includes genetic information as well as protein synthesis instructions. Its shape is a double helix.
12. It is made up of bones and connective tissue, such as cartilage, tendons, and ligaments.
13. a sparkling white cordlike bundle of fibers wrapped in a coat that links the nervous system to the rest of the body.

1. basic building blocks of all living things.
3. A system consisting of a group of organs that work together to perform one or more functions.
4. a self-regulating mechanism that keeps biological systems stable while responding to changing environmental situations.
5. includes the heart, blood arteries, and blood itself
7. a group of cells with similar shape and function.
8. An individual form of life, such as a plant and animal.
11. the body's recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that illustrates specific functions.