Each tonsil consists of a network of crypts (pits) that store cells used to fight infection. The tonsils contain B cells, a type of white blood cell that fights infections. They also produce antibodies against polio, streptococcal pneumonia, influenza, and numerous other infections.
Global Warming: What's Up With The Weather? is a DVD presentation of the television special by NOVA and Frontline dealing with questions raised about modern climate change.
Weather is the atmospheric conditions, including the temperature, wind, snow, rain, or anything else happening outside. People tend to talk about the weather when they can't think of anything else to talk about. The weather outside is partly cloudy whether you like it that way or not.