What are biotic factors?
Define predatism?
What is competition?
Explain water cycle?
What are biomass pyramids? What do they represent?
What is the difference between ecological niche and habitat?
What are heterotrophic beings?
What is the respective importance of nitrogen for the living beings?
What are pioneer species? What is the role of the pioneer species?
What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What is the typical vegetation of the tropical forests?
How can the abundance and diversity of living beings in the tropical forests be explained?
What is competition? Which type of ecological interaction is competition?
Define inharmonious ecological interaction?
How does the vegetal stratification of an ecosystem influence the biological diversity?