Explain the main means by which autotrophic beings obtain energy?
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Define harmonious ecological interaction?
Which terrestrial vertebrate group is extremely rare in deserts?
What are the advantages of leguminous crop rotation in agriculture?
What is the respective importance of water, carbon, and nitrogen for the living beings?
Define ammensalim?
What is bioremediation?
What are the main chemical compounds that destroy the ozone layer?
Besides mercury which other heavy metals cause toxic pollution?
Explain how do the availability of water and light and the climate affect the growth of a population?
Explain how does the vegetal stratification of an ecosystem influence the biological diversity?
What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What is the typical fauna of the tropical forests?