Explain some examples of migratory animals?
What is the zooplankton?
What are the advantages of leguminous crop rotation in agriculture?
What is inharmonious ecological interaction?
Explain how are ecological interactions classified?
What is the difference between the concepts of community and population?
Explain how are the grasslands of north america and of south america respectively called?
Explain different types of wastes?
How do populations of predators and preys vary in predatism?
Explain the main limitations for population growth
How many tropic levels can a food chain have?
What are tropic levels?
What are biogeochemical cycles?
What is gpp?
Explain some examples of parasitism?