Define carbon cycle?
What are the environmental harms caused by mercury pollution?
What are intraspecific ecological interactions?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
Explain how can the abundance and diversity of living beings in the tropical forests be explained?
What are primary consumers?
How can a great biological diversity protect an ecosystem from environmental damages? Why are less biodiverse ecosystems under the risk of suffering deep biological harms if submitted to even small changes?
What are biotic factors?
What is the typical fauna of the tropical forests?
Define biosphere?
Explain the three main types of tropic pyramids studied in ecology?
Explain why the tropical forests are also known as stratified forests?
What is the carbon cycle?
How many tropic levels can a food chain have?
What is competition?