Define the nitrogen cycle?
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What is gpp?
What is the role of the ozone layer for the living beings?
What is the difference between the concepts of community and population?
What is the climax stage of an ecological succession?
Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
Define population?
Explain the role of the ozone layer for the living beings?
Why is the sun the “motor” of the water cycle?
Define commensalism?
What is dry mass?
How can the abundance and diversity of living beings in the tropical forests be explained?
How is energy transferred along a food chain?