The grouping of two or more tissues to perform a particular function defines which level of organization?

The grouping of two or more tissues to perform a particular function defines which level of organization?

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

Answer: (B)

The grouping of two or more tissues to perform a specific function defines the organ level of organization. Tissues are made of similar cells working together, and when several tissues come together, they form an organ with a distinct structure and role—like the heart, which uses muscle tissue, connective tissue, and others to pump blood. This level sits between tissue (the building blocks) and systems (where multiple organs work together for broader functions).

The grouping of two or more tissues to perform a specific function defines the organ level of organization. Tissues are made of similar cells working together, and when several tissues come together, they form an organ with a distinct structure and role—like the heart, which uses muscle tissue, connective tissue, and others to pump blood. This level sits between tissue (the building blocks) and systems (where multiple organs work together for broader functions).