Antibody. Protein that is produced by lymphocytes (white blood cells) and that attaches to a specific antigen. Antigen. Molecule on the surface of a pathogen that identifies it as a foreign invader to the immune system. Bacteria. Single-celled organism.Has a cell wall, cell membrane, cytoplasm.ntibody. Protein that is produced by lymphocytes (white blood cells) and that attaches to a specific antigen. Antigen. Molecule on the surface of a pathogen that identifies it as a foreign invader to the immune system. Bacteria. Single-celled organism.
Large amounts of fluid are used especially when nursing. The Institute of Medicine recommends that pregnant women drink about 10 cups (2.3 liters) of fluids daily and women who breast-feed consume about 13 cups (3.1 liters ) of fluids a day.
how much water does a person need? Every human being needs water to survive and the bare minimum per person for drinking and sanitation is measured at 20 liters a day. In highly developed countries clean water is available 24 hours a day and the average consumption level is 100 liters per person. In some countries this amount is significantly higher, such as Germany which has an average of 130 liters and the United States at between 200 and 400 liters per person per day.