Direct microscopic count The direct total cell count involves counting the number of cells in a simple microscopically. This technique is very similar to that used in blood cell counts. Scientists perform a direct microscopic count using a specially designed slide called a Petroff-Hausser cell counter/ counting chamber/ cytometer/ hemacytometer …

Food is any substance consumed to provide nutritional support for the body. Food contains essential nutrients such as carbohydrates, fats, proteins, vitamins or minerals. Food is ingested by an organism and assimilated by the organisms cells to provide energy, maintain life or stimulate growth. Classifications of food According to Martin …

Water pollution is any undesirable changes in physical, chemical and biological characteristics of water that may harmfully affect the life or create a potential health hazard for living organisms. When the pollutant is undesirable microorganisms, the phenomenon is called microbial water pollution. Through ordinary exposure to air, soil and effluent …