Any semi-automatic weapon; semi-shots, smg's, etc. (pronounced seh-MEE) 2 -(n.) An 18-wheeler truck (pronounced seh-MI) 1 - Semi's are only half as fun as automatics. 2 - Aparrently a semi loaded with cocaine and doritos rolled over on the freeway yesterday. #truck #18 wheeler #gat #gun #strap #automatic
The biological fields of botany, zoology, and medicine date back to early periods of civilization, while microbiology was introduced in the 17th century with the invention of the microscope. However, it was not until the 19th century that biology became a unified science.
These steps are all used in the study of marine biology, which includes numerous sub fields including: 1  Microbiology: The study of microorganisms, such as bacteria, viruses, protozoa and algae, is conducted for numerous reasons.2  One example is to understand what role microorganisms play in marine ecosystems. Environmental marine biology: includes the study of ocean health. 2  It is important for scientists to determine the quality of the marine environment to ensure water quality is sufficient to sustain a healthy environment.