TY  - BOOK
AU  - Silverstein,Alvin
AU  - Silverstein,Virginia B.
AU  - Nunn,Laura Silverstein
TI  - Food chains
T2  - Science concepts
SN  - 076133002X :
AV  - QH541 .S534 1998
U1  - 577/.16 21
PY  - 1998///
CY  - Brookfield, Conn.
PB  - Twenty-First Century Books
KW  - Food chains (Ecology)
KW  - Sears
KW  - Ecology
N1  - Includes bibliographical references (p. 57-60) and index
N2  - Explains various components of a food chain, and discusses the concepts of food webs, umbrella species, and biogeochemical cycles
ER  -