Explain the primary energy source for life on earth?
What are intraspecific ecological interactions?
Explain how does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?
Under which form is nitrogen fixed by the living beings.
What are the main interspecific ecological interactions?
What are the main intraspecific ecological interactions?
What are some examples of interspecif competition?
Define population density?
What is Ecology?
What are the analyses provided by the study of human age pyramids?
What are abiotic factors?
How the biotic potential can be represented in the same graphic?
Explain the main characteristics of the age pyramids of developed countries?
Define selective waste collection?
Define environmental resistance?