01421cam a2200397 i 4500 613829076 TxAuBib 20140801120000.0 110726s2012||||||||||||||||||||||||eng|u 2011030963 9780531246757 library binding 0531246752 library binding 9780531282694 pbk. 0531282694 pbk. 9780329917098 Follett bdg. 0329917099 Follett bdg. (OCoLC)743432528 DLC DLC BTCTA YCC VHP BDX GRC GZD UtOrBLW TxAuBib rda Gray, Susan Heinrichs. Ecology : the study of ecosystems / Susan H. Gray. New York : Children's Press, 2012. 48 pages : illustrations (chiefly color) ; 22 cm. txt rdacontent n rdamedia nc rdacarrier true book, A True book. Includes bibliographical references and index. Explains what ecology is, shows how living things are classified, and looks at the environments in which they live. 750L Lexile. Accelerated Reader MG 5.2 0.5 149322. 20140801. Ecology Juvenile literature. A true book. True book.