what are the difference between migration, emigration, and immigration?
What is competition?
What is the typical vegetation of the grasslands?
What is the gross primary production of an ecosystem? How does GPP relate to photosynthesis?
In a numeric pyramid to which tropic level does the base always refer?
How does the vegetal stratification of an ecosystem influence the biological diversity?
Explain the mutualism?
What are biotic factors?
Why is cannibalism an inharmonious intraspecific ecological interaction?
Define a biodigester?
What are biogeochemical cycles?
Give an account of the classification of ecology?
What are the destinations of the organic material fabricated by the producers?
Besides mercury which other heavy metals cause toxic pollution?
Is herbivorism a form of predatism?
