A group of organs that work together to perform common body functions is called
The correct option is A Organ system
Living organisms can be unicellular or multicellular based on the number of cells in an organism. In muticellular organisms, several cells come together to form tissues. For example, epithelial tissue, connective tissue, etc. Tissues come together to form organs. For example, lungs, trachea, etc. Several organs in the body come together to perform a common body function and it is known as organ system. For example lungs, bronchi, pharynx, trachea, etc. come together to form the respiratory system in human body. All these organs facilitate and perform the common function of exchange of gases.