TY - BOOK AU - Davis,Barbara J. TI - Biomes and ecosystems T2 - Gareth Stevens vital science. Earth science SN - 9780836878721 (pbk.) : AV - QH541.14 .D38 2007 U1 - 577 22 PY - 2007/// CY - Milwaukee, Wis. PB - Gareth Stevens Pub. KW - Ecology KW - sears N1 - Includes bibliographical references (p. 47) and index; Ecosystems -- Ecosystem energy flow -- Natural cycles -- World biomes -- Keeping the balance; 970; Lexile N2 - Explains how ecosystems, including food webs and natural cycles, work to move energy around the planet UR - http://www.loc.gov/catdir/toc/ecip072/2006033114.html ER -