What are some examples of migratory animals?
Explain what are fossil fuels?
What is biodiversity?
What is environmental resistance?
Define the nitrogen cycle?
What is the formula of the net primary production (npp)?
What is gpp?
Explain how can the abundance and diversity of living beings in the tropical forests be explained?
Define ecological succession?
Define population density?
What is population density?
Explain environmental resistance?
What are persistent organic pollutants?
What is a community?
Explain the main factors that affect the growth of a population?