Do yout agree that 'A cell is a building unit of on organism'. If yes, explain why?

Explanation

Yes, cell is a building unit of every living organism as every living being is made up of onr or more cells.For example, in unicellular or acellular organisms, the single cell performs all the functions of life activities. However, they become specialised to from components of different structures that perfoem different structures that performdifferent functions. Cells are first organised into tissues, each with a specific function, e.g., contraction by the muscular tissue. Tissues are organised to from organs with each organ performing a specific task, e.g., heart, kidney, lung, stomach, eyes. Organs are grouped into organ systems, each with a major function, e.g., circulatory system, excretory system, respiratory system, digestive system, skeletal system. A living organism has a number of organ systems. Thus, in all such organisational complexty, cell remains the basic building unit of the organism.