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Define the nitrogen cycle?
What is gpp?
Explain how does the vegetal stratification of an ecosystem influence the biological diversity?
What is the respective importance of carbon for the living beings?
Explain the commensalism?
What are the factors that for influencing photosynthesis also interfere with the gross primary productivity?
What are the analyses provided by the study of human age pyramids?
How does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?
How does net primary production relate to the energy pyramids?
What are age pyramids?
What are plankton, nekton, and benthos?
Why is leguminous crop rotation used in agriculture?
In a numeric pyramid to which tropic level does the base always refer?
Which type of ecological interaction is competition?
Define population growth rate?
