Ecology and ecosystem
Ecology The study of interactions that take place between organisms and their environment.
Energy Transfer in Ecosystem Vocabulary Trophic = nutrition –Autotrophs –Heterotrophs.
Food chains and webs presentation
Biology - Chp 3 - The Biosphere - PowerPoint
Diversity & Evolution - Organisms and their environment
Ecology
Power point slides by
Energy flow1
Ecology & environment
Effects of pesticides on ecosystems
