Which is the autotrophic group responsible for the production of most part of the molecular oxygen of earth?
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What is biodiversity?
What is parasitism?
Explain why transgenics are considered a threat to the environmental safety?
Explain pops?
How can a great biological diversity protect an ecosystem from environmental damages?
What is the typical fauna of the tropical forests?
Define dry mass?
What are the typical vegetation and the typical fauna of the tundras?
What are the main factors that affect the growth of a population?
Explain the main chemical compounds that destroy the ozone layer?
What is numeric pyramid? What does it represent?
Explain the primary energy source for life on earth?