What are deciduous trees?
What are the processes that autotrophic beings use to produce organic material from inorganic substances?
What is nuclear pollution?
What is the primary energy source for life on earth?
Define protocooperation?
Why transgenics are considered a threat to the environmental safety?
What is gpp? How is it related to photosysnthesis?
What are primary consumers?
Is monoculture a system that contributes to great biological diversity of an ecosystem?
What is mutualism?
Why is leguminous crop rotation used in agriculture?
How does gross primary production(gpp) relate to photosynthesis?
What is population density?
Define a biodigester?
What is the formula of the net primary production (npp)?