An associate degree is an undergraduate academic degree awarded by colleges and universities upon completion of a course of study intended to usually last two years. It is considered to be a greater level of education than a high school diploma or GED. The first associate degrees were awarded in the U.K. in 1873 before spreading to the U.S. in 1898. They have since been introduced in a small number of other countries.
Monocytes are the largest of the white blood cells. These are the cells that 'clean up' our blood the most. Monocytes also employ phagocytosis to 'eat' foreign particles, bacteria and dead neutrophils.
The police officers, or white blood cells, patrol the body looking for pathogens, or bad guys, that could harm the body. Just like there are different kinds of police officers, such as patrol officers, detectives, etc., there are different types of white blood cells. The first type of white blood cell is the lymphocyte. The lymphocytes are further divided into T cells and B cells. Both lymphocytes work together to help your body produce immunity to the different pathogens that have invaded the body.