Define water cycle?
Explain how do the availability of water and light and the climate affect the growth of a population?
Define a population?
Why does thermal inversion increases air pollution?
Define biodiversity?
Define a biodigester?
Define protocooperation?
Explain the analyses provided by the study of human age pyramids?
Define an ecosystem?
Define ammensalim?
What are the benefits can commensalism offer to a species?
Explain some examples of parasitism?
Explain the main means by which autotrophic beings obtain energy?
Define nuclear pollution?
Define mutualism?