Balance in nature : A first film
Title:
Balance in nature : A first film
Summary:
Reinforcing the importance of plants and animals living a balanced co-existence, this video examines food chains and food pyramids and what happens when the chains are broken.
Year Published:
1990-1999
Series:
Physical Description:
1 videocassette (12 min) ; BPN 3496-01
Publisher:
Alberta Access 199?