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.
... and 10.6% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 102.8 males. For every 100 females age 18 and over, there are ...