What is the formula of the net primary production?
Explain the role of the ozone layer for the living beings?
Explain some examples of interspecif competition?
How does net primary production(npp) relate to the energy pyramids?
Define selective waste collection?
Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
Explain how does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?
Define pollution?
Explain how are the grasslands of north america and of south america respectively called?
Define dry mass?
What is the respective importance of water for the living beings?
Define ecological succession?
Explain the typical conformation of the age pyramids of underdeveloped countries?
Explain how are ecological interactions classified?
Define biologic control?