Answer:
Biological warfare is a military technique which involves the use of pathogens such as viruses, bacteria, other disease-causing biological agents, or the toxins produced by them as biological weapons. It is also known as germ warfare or bioweapons. There are genreally four kinds of biological warfare agents: bacteria, viruses, rickettsiae and fungi. Anthrax is one of the most well known bioweapon.
Next Question: What is ethnic bioweapon?
Previous Question: What is an antimatter weapon?