What is the carbon cycle?
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What is the typical shape of a population growth curve?
Why does this field interest you?
How are grasslands classified?
How is energy transferred along a food chain?
What is biosphere?
Explain the difference between primary ecological succession and secondary ecological succession?
What is the respective importance of water for the living beings?
Explain some examples of migratory animals?
What are biomass pyramids? What do they represent?
What is the phytoplankton?
What is nekton?
Explain what are fossil fuels?