Autoimmunity. The immune system is a complex set of organs, cells, proteins and other substances that function to prevent infection. Primary immunodeficiency diseases are characterized by abnormalities in specific components of the immune system that lead to an increased susceptibility to infection.
How to Measure Ounces. Ounces are a measurement of mass or weight, and as such, you should use a scale when measuring ounces for a recipe, experiment, or similar procedure. In contrast, fluid ounces are a measurement of volume, so they are measured in a different manner. Note that there are also ways to estimate mass in ounces if precision is not necessary, and if required, you can easily convert a few other units of measurement into ounces.
fluid ounce (fl. oz.) a measure of liquid volume in the apothecaries' system, which is equal to 8 fluid drams or 29 mL, 480 minims, 1â20 imperial pint, or the volume occupied by 437.5 grains of distilled water at a temperature of 16.7Â° C. See also apothecaries' measure, metric system.