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What is the typical shape of a population growth curve? How the biotic potential can be represented in the same graphic?
What is the cost-benefit relation regarding sewage treatment as a strategy to fight water pollution?
What is the climax stage of an ecological succession?
How are ecological interactions classified?
Besides mercury which other heavy metals cause toxic pollution?
What is selective waste collection?
What is plutonium reprocessing? Why is it a big environmental issue?
What are persistent organic pollutants (POPs?
Why the tropical forests are also known as stratified forests?
What is competition? Which type of ecological interaction is competition?
How does the vegetal stratification of an ecosystem influence the biological diversity?
What is population growth rate?
What are the typical vegetation and the typical fauna of the taigas?
What is the difference between the concepts of food chain and food web?
In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?
