Cell biology is the study of the physiological properties of cells and their interaction with each other and their environment, on the microscopic and the molecular level. Cell biology researches both single-celled organisms like bacteria and specialized cells in multicellular organisms like humans.
... of all households are made up of individuals and 13.7% have someone living alone who is 65 years of age or older. The average household size is 2.25 and the average ...