What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
88What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers?
139Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
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What is competition? Which type of ecological interaction is competition?
What is selective waste collection?
What are the typical vegetation and the typical fauna of the taigas?
Explain how can the abundance and diversity of living beings in the tropical forests be explained?
Why is leguminous crop rotation used in agriculture?
What are the differences between the age pyramids of developed and under developed countries?
What is the respective importance of nitrogen for the living beings?
What is population density?
What are the processes that autotrophic beings use to produce organic material from inorganic substances?
What is ammensalim?
What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids?
Why are less biodiverse ecosystems under the risk of suffering deep biological harms if submitted to even small changes?
What is plutonium reprocessing?
What are biomass pyramids? What do they represent?
Define eutrophication?
