%0 eBook %A Silverstein, Alvin %E Slverstein, Virginia B. %E Nunn, Laura Silverstein %I Twenty-First Century Books %D 1999 %C Brookfield, Conn %G English %B Silverstein, Alvin. Science concepts. %@ 0585263752 (electronic bk.) : %T Clocks and rhythms %U https://proxy.library.tamu.edu/login?url=http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=32515 %X Discusses the concepts of time and biological cycles, including the phases of the moon, the internal clocks of plants and animals, seasonal rhythms, and the aging process.