Cellular and microscopic biology allow scientists to study cells and microorganisms. Cellular biology is the study of cells, including their structure and function. Microbiology is the study of microorganisms, which include algae, bacteria, and viruses.
How SARS Works
Severe acute respiratory syndrome or SARS is back in the news. A second case has been confirmed in China in the southern province of Guangdong. Learn about this potentially lethal condition.