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.
White blood cells play an important role in your bodyâs immune system, searching the blood for invading viruses, bacteria, and fungi. When a foreign virus or bacteria enters your blood, the white blood cell, or leukocyte, recognizes and destroys the invading particle before it can cause disease. There are several different types of white blood cells, each with their own function.