Which term best describes a structure consisting of two or more tissues performing a common function?

Which term best describes a structure consisting of two or more tissues performing a common function?

• A. Organ level of organization
• B. System level of organization
• C. Tissue level of organization
• D. Cellular level of organization

Answer: (A)

The main idea is that an organ is a structure made up of two or more tissue types that work together to perform a specific function. This cooperative arrangement is what distinguishes an organ from a tissue (which is a single type of tissue), a cell (the basic unit), or a system (multiple organs working together). Therefore, the term that best fits “two or more tissues performing a common function” is the organ level of organization, as seen in examples like the stomach, heart, or liver.

The main idea is that an organ is a structure made up of two or more tissue types that work together to perform a specific function. This cooperative arrangement is what distinguishes an organ from a tissue (which is a single type of tissue), a cell (the basic unit), or a system (multiple organs working together). Therefore, the term that best fits “two or more tissues performing a common function” is the organ level of organization, as seen in examples like the stomach, heart, or liver.