Define pollution?
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What is benthos?
Why is leguminous crop rotation used in agriculture?
What are autotrophic beings?
Under which form is nitrogen fixed by the living beings.
What is the difference between the concepts of food chain and food web?
What is protocooperation?
What is the role of the ozone layer for the living beings?
What is the typical localization of the tropical forests regarding latitude?
Define ecosystem in your own language?
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?
Explain the three main types of tropic pyramids studied in ecology?
Into which type of energy is the light used in photosynthesis transformed.