Why is the Cell called the structural and functional unit of life/building blocks of life?
(this is a 3 marker, therefore I require One point for why it's called "structural", another point for functional, and another point for building blocks of life.)
The cells are called the structural and functional units of a living body. Cells are structural units as they form the structure of the organism. Cells combine to form tissues, which further combine to form organs, and organs combine to form organic systems, which further combine to form an organism. So, the cell is the basic structural unit for all unicellular and multicellular organisms.
Some of the basic life processes or functions take place in every cell to keep the organisms alive such as digestion, respiration, excretion, etc., whether it is a single-celled organism or multicellular organism. So, the cells are also called the functional unit of life owing to these processes.