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Federal Drugs Administration. The US drugs policy and control organisation.
The number of fertilised eggs that a sexually reproducing organism produces.
A sustained increase in body temperature above normal. It is usually the result of infection but can be due to physical trauma.
The dutifulness that a son or daughter displays to his or her parents.
Ability of an organism to survive and produce offspring that can themselves produce viable offspring. The term should not be confused with the common use, which refers specifically to physical bodily fitness.
flavin adenine dinucleotide (FAD)
A hydrogencarrying coenzyme derived from vitamin B2 (riboflavin).
Atoms or group of atoms that contain unpaired electrons and are therefore unstable and highly reactive. They are produced both via metabolism and by exposure to harmful substances. Free radicals acquire electrons from other molecules around them, thus creating another unpaired electron in that molecule, and so on, resulting in a chain reaction. This chain reaction can cause considerable damage to living material. Free radicals can be inactivated by antioxidants.