National Geographic <br/><br/>
Life in the Sea; Web of Life 

 - Washington, D.C.  National Geographic Society  1995 
<br/><br/> Color video; 18 minutes.  Reveals how food chains illustrate the transfer of energy between living things and how several food chains combine to form food webs; also discusses concepts of producer, consumer, decomposition, and energy level. 
<br/><br/><label>ISBN: </label>0-7922-2909-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science