What does numeric pyramid represent?
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How are ecological interactions classified?
Define biosphere?
What is transgenic food?
What is the respective importance of carbon for the living beings?
Define pollution?
How are the heterotrophic beings divided in the ecological study of food interactions?
What is population density?
What is the typical fauna of the tropical forests?
Define eutrophication?
Explain what is the most abundant form under which nitrogen is found in nature?
What are the main limiting factors for the growth of a population?
What is plutonium reprocessing? Why is it a big environmental issue?