What is the water cycle?
Why the tropical forests are also known as stratified forests?
Explain the main types of waste?
What are the phytoplankton and the zooplankton?
How the biotic potential can be represented in the same graphic?
What are the analyses provided by the study of human age pyramids?
What is the difference between primary ecological succession and secondary ecological succession?
What is the typical fauna of the tropical forests?
How are grasslands classified?
What is the formula of the net primary production?
Is monoculture a system that contributes to great biological diversity of an ecosystem?
Define selective waste collection?
Define commensalism?
Define species?
What are the main limiting factors for the growth of a population?
