curÂ·renÂ·cy. (kÃ»râ²Én-sÄ, kÅ­râ²-) n. pl. curÂ·renÂ·cies. 1. Money in any form when in actual use as a medium of exchange, especially circulating paper money. 2. Transmission from person to person as a medium of exchange; circulation: coins now in currency. 3. General acceptance or use; prevalence: the currency of a slang term.
(T/F) Most hormones can be classified chemically as either amino-acid based or steroids. True. Most hormones belong to the amino-acid group, while others (steroids) are derived from cholesterol.
Hormones. Hormones are chemical substances which are produced in one part of an organism which have effect on another part. Below are the main hormones: Plant hormones: Natural growth hormone, auxin is responsible for phototropism.Plant hormones are also used artificially for rooting.ormones are chemical substances which are produced in one part of an organism which have effect on another part. Below are the main hormones: Plant hormones: Natural growth hormone, auxin is responsible for phototropism.