Q. Which among the following is the correct sequence of the Levels of Organisation found in living organsims?
Answer: Cell - Tissue - Organ - Organ system - Individual.
Notes: The correct sequence of the level of Organisation in living organism is :Cell – Tissue – Organ - Organ system - Individual. The cell is basic unit of life and thesmallest level of organisation of the living organisms.In multicellular organisms more than one cell of similar or dissimilar nature combine to form a tissue.Different tissues combone to form distinct organs. A group of organs coordinating to performs a major function forms the organ system.A multicellular individual is formed by the combination of many organ systems working in coordination. Thus Option [D] is correct