Define biologic control?
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Define the nitrogen cycle?
Define selective waste collection?
Explain the role of the ozone layer for the living beings?
Under which form is nitrogen fixed by the living beings.
What is the relation between environmental resistance and the population growth according to the biotic potential curve and the real population growth curve?
Which harms can thermal inversion cause to humans?
Define parasitism?
Can the amount of available energy in a given tropic level to be larger than the available energy in inferior tropic levels? What does that condition means to the conformation of the energy pyramids?
What are autotrophic beings?
In a numeric pyramid, is it possible the base to be smaller than the other levels?
How are grasslands classified?
Which type of energy is the light used in photosynthesis transformed.