What is the respective importance of water for the living beings?
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Explain some examples of parasitism?
What is the phytoplankton?
Define species?
What are interspecific ecological interactions?
In a numeric pyramid, is it possible the base to be smaller than the other levels?
What are persistent organic pollutants?
What do biomass pyramids represent?
What is plankton?
Which is the autotrophic group responsible for the production of most part of the molecular oxygen of earth?
Why is leguminous crop rotation used in agriculture?
Explain the main types of waste?
How is carbon dioxide made by producers and consumers?