Define dry mass?
Define a biodigester?
What are the main characteristics of the age pyramids of developed countries?
Despite having a great biodiversity why, is the Amazon Rainforest under risk of desertification?
Explain some examples of interspecif competition?
How is energy transferred along a food chain?
Explain pops?
What are persistent organic pollutants?
What is nuclear pollution?
Explain why transgenics are considered a threat to the environmental safety?
Explain the tropic pyramids of ecology?
What are the major terrestrial biomes?
What are biotic factors?
Explain the main limitations for population growth
What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?