Different Levels of Organisation of Life: All living things possess a certain degree of organisation and exist as individual organisms. Some organisms are unicellular (formed of single-cell only) while the other are multicellular (formed of many cells). In higher multicellular organisms, similar cells combine together to form distinct tissues. The tissues, in turn, combine to form organs. Several organs constitute an organ system which is responsible for a specific function. Most of the plants and animals, we come across, are formed of such organ systems. Let us consider different levels of organisation one by one. Organisation at Cellular Level: There … Continue reading Different Levels of Organisation of Life