This is true - psychology measures observable behaviours and used scientific methods
The cell is fundamental unit of structure and function in living organisms .All cells arise from pre-existing cells by division . The cell theory states that the cell is the basic unit of life and that all other cells are developed from an existing cell. This theory was developed way back in the mid of 17th century.
the air and all the gasses
To provide energy from the cell through the mitochondria
