What term describes a group of organs that work together to perform major functions?

• A. Organ
• B. Gland
• C. Organ System
• D. Tissue

Answer: (C)

Organ systems describe how multiple organs coordinate to accomplish large-scale tasks needed by the body. Each organ has a specialized job, and together they carry out complex processes like digestion, circulation, or defense, while maintaining balance in the body's conditions. An organ is a distinct structure made of tissues that performs a specific function, such as the stomach breaking down food. A gland is a type of organ that mainly secretes substances like hormones or enzymes. Tissue is a collection of similar cells working together for a function, like epithelial tissue lining organs. When several organs join forces, they form an organ system, enabling the body to perform major functions efficiently.