What are the main factors that affect the growth of a population?
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What is the typical fauna of the tropical forests?
What is the primary energy source for life on earth?
Define nuclear pollution?
What are the main types of waste?
How do populations of predators and preys vary in predatism?
Why waste is considered one of the major environmental issues?
What are autotrophic beings? What are heterotrophic beings?
How does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?
Explain how are ecological interactions classified?
What do biomass pyramids represent?
In a numeric pyramid to which tropic level does the base always refer?
What are the typical vegetation and the typical fauna of the tundras?