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The best description of an organ is:
- Multiple tissues working together
An organ is a structure made up of two or more types of tissues that work together to perform specific functions in the body. Each tissue within the organ has a specialized role, and when they come together, they form an organ that carries out complex functions necessary for the body to operate efficiently.
For example, the heart is an organ composed of muscle tissue, connective tissue, and nerve tissue. These tissues work together to pump blood throughout the body, providing oxygen and nutrients to various organs and tissues.
In contrast:
- Multiple tissues working independently would not accurately describe an organ since organs are made up of tissues working together in a coordinated manner.
- Multiple organ systems working together involve multiple organs working together, not just tissues within an organ.
- One type of tissue working independently does not represent the complexity of organs, which consist of multiple tissues collaborating to perform specific functions.
