What is the difference between the concepts of food chain and food web?
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Define protocooperation?
What is the typical shape of a population growth curve?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
Can the amount of available energy in a given tropic level to be larger than the available energy in inferior tropic levels? What does that condition means to the conformation of the energy pyramids?
What are abiotic factors?
How does gpp relate to photosynthesis?
What is the formula of the net primary production (npp)?
Why are less biodiverse ecosystems under the risk of suffering deep biological harms if submitted to even small changes?
Explain the predatism?
What is parasitism?
What are the analyses provided by the study of human age pyramids?
Define the nitrogen cycle?