Define mutualism?
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What is the cost-benefit relation regarding sewage treatment as a strategy to fight water pollution?
What is the typical shape of a population growth curve? How the biotic potential can be represented in the same graphic?
What is the climax stage of an ecological succession?
Explain the typical conformation of the age pyramids of underdeveloped countries?
Does thermal inversion occur in the winter or in the summer?
How are ecological interactions classified?
Give an account of the classification of ecology?
Explain the three main types of tropic pyramids studied in ecology?
What is biotic potential?
What is the relation between environmental resistance and the population growth according to the biotic potential curve and the real population growth curve?
What are primary consumers? Can 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?
What is a biodigester?