What are the main sources of mercury pollution?
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Define protocooperation?
What is parasitism?
What is ecological succession?
What is the formula of the net primary production?
How the biotic potential can be represented in the same graphic?
What is the primary energy source for life on earth?
Define commensalism?
Define harmonious ecological interaction?
Why transgenics are considered a threat to the environmental safety?
What is the respective importance of water for the living beings?
What is population?
Which terrestrial vertebrate group is extremely rare in deserts?