Ecosystems : nature in the balance /

Provides students with a clear definition of an ecosystem. Illustrates the concepts of fod chains and food webs, and shows how energy from the sun travels from plants to animals and finally down to bacteria and fungi.

Bibliographic Details

Corporate Authors:	Norman Bean Films, AIMS Multimedia (Firm), AIMS Media, Inc
Format:	Video VHS
Language:	English
Published:	Chatsworth, CA : AIMS Multimedia, [1993]
Subjects:	Ecology > Juvenile films. Ecology.