Define ecosystem in your own language?
What are persistent organic pollutants (POPs?
Explain the typical conformation of the age pyramids of underdeveloped countries?
How does net primary production relate to the energy pyramids?
What is the zooplankton?
What are tropic levels? How many tropic levels can a food chain have?
What are the processes that autotrophic beings use to produce organic material from inorganic substances?
Explain the main types of waste?
Explain what are fossil fuels?
What is the respective importance of nitrogen for the living beings?
What is the role of the pioneer species?
What is the role of the ozone layer for the living beings?
Give an account of the classification of ecology?
Define biosphere?
Explain ammensalism?
