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What are biogeochemical cycles?
What is population density?
Define population density?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
What are some examples of interspecific competition?
Explain the difference between the concepts of food chain and food web?
Explain the main types of waste?
What is plutonium reprocessing? Why is it a big environmental issue?
Which type of energy is the light used in photosynthesis transformed.
Explain how are the grasslands of north america and of south america respectively called?
What are the typical vegetation and the typical fauna of the tundras?
What is the respective importance of carbon for the living beings?
What is the respective importance of water, carbon, and nitrogen for the living beings?
What are the advantages of leguminous crop rotation in agriculture?
What are colonies and societies?
