AP BIOLOGY

Detailed explanation-1: -Complete answer: The Group of tissues performing particular functions in the body is called an organ or an organ is a structure composed of at least two or more tissue types. Each tissue performs a specific function of the body. Several organs together constitute an organ system.

Detailed explanation-2: -Organ-a group of tissues precisely arranged so that they can work together to perform specific functions. Examples include: Liver. Brain.

Detailed explanation-3: -organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function. In higher animals, organs are grouped into organ systems; e.g., the esophagus, stomach, and liver are organs of the digestive system.

Detailed explanation-4: -Several organs in the body come together to perform a common body function and it is known as organ system.