Primary, secondary, and tertiary sources. When searching for information on a topic, it is important to understand the value of primary, secondary, and tertiary sources.Primary sources allow researchers to get as close as possible to original ideas, events, and empirical research as possible.ertiary resources often provide data in a convenient form or provide information with context by which to interpret it. The distinctions between primary, secondary, and tertiary sources can be ambiguous.
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
Antibiotics are medications used specifically to kill or disable bacteria. All bacteria are prokaryotic. organisms, meaning that their cells are different than cells of the human body. These differences can be exploited, so that antibiotic drugs can kill bacteria without harming us. Most of the bacterial world falls into one of two categories, Gram+ and Gram-, based on Article Summary: Antibiotics are drugs used to fight bacterial infections.