what are the difference between migration, emigration, and immigration?
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Define a food chain?
Explain the typical conformation of the age pyramids of underdeveloped countries?
What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
How is carbon dioxide made by producers and consumers?
What are colonies?
What do you mean by eutrophication?
Explain the main factors that affect the growth of a population?
What is the role of the pioneer species?
What are pioneer species?
What is bioremediation?
What is gpp?
How does gross primary production(gpp) relate to photosynthesis?