Besides mercury which other heavy metals cause toxic pollution?
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In the ecological study of food interactions how are the autotrophic beings called?
Define an ecosystem?
What is nuclear pollution?
What are the main characteristics of the age pyramids of developed countries?
What are heterotrophic beings?
Define a biome?
What are biotic factors?
What is the main biological process that consumes carbon dioxide?
Explain pops?
What are the main limiting factors for the growth of a population?
Define the nitrogen cycle?
What are the main interspecific ecological interactions?