Collection of PowerPoints on Ecology - also contains information useful for teachers of Biology and/or Food Technology/Geography.*1*ECOLOGY*2**4*Ecology, what is it*4*Ecological Relationships*4*Ecology*4*Ecosystems*4*Environment and feeding relationships*4*Environments*4*Feeding relationships*4*Fish, Amphibians, Reptiles, birds, and mammals*4*Food pyramid*4*Food Production and the environment*4*Food Webs*4*Food web of the Arctic*4*Food Chains and Webs*4*In Their Natural Habitats*4*Intensive farming*4*Interactions of Life-Communities*4*Population*4*Populations*4*Predators and prey*4*Pyramids*4*Symbiosis*4*Symbiosis2*4*Symbiosis3*4*Symbiosis and Homeostasis