GENERAL KNOWLEDGE

Detailed explanation-1: -Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

Detailed explanation-2: -Groups of Tissues Form Organs An organ is a structure made of two or more tissues that work together.

Detailed explanation-3: -A group of cells working together is called a tissue and a collection of tissues all performing a specific function is called an organ. Multiple organs which are connected together are referred to as an organ system. Examples of organs include the heart, the lungs, the liver, kidneys, the intestines and the stomach.

Detailed explanation-4: -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.