Ecosystem

An interactive PPT Science Book containing 68 slides covering on "Ecology and the ecosystems". The book is working in Presentation View. It allows the instructor and the student to read, write, practice to understand what they read and play games, all in one place, to interact with the content. Key answers are provided for all the questions. The book includes the following content that can be taught in two sessions of 45 mins:
1) the definition of ecology and ecosystems
2) Biosphere
3) Biotic and abiotic factors
4) Ecological niche
5) Levels of organization
6) Limiting factors
7) pollution
8) recycling and reusing