What is the typical conformation of the age pyramids of underdeveloped countries?
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What is the respective importance of carbon for the living beings?
What are abiotic factors?
Why does this field interest you?
What is biodiversity?
What is the typical shape of a population growth curve? How the biotic potential can be represented in the same graphic?
How does the vegetal stratification of an ecosystem influence the biological diversity?
What is the formula of the net primary production (npp)?
What is a population?
Why does thermal inversion increases air pollution?
What is the typical fauna of the tropical forests?
In a numeric pyramid to which tropic level does the base always refer?
What is pollution?