What is gpp? How is it related to photosysnthesis?
What is the primary energy source for life on earth?
How does net primary production relate to the energy pyramids?
What are primary consumers?
What is the difference between the concepts of food chain and food web?
What is the group of aquatic beings composed of large number of photosynthetic beings?
Why is the sun the “motor” of the water cycle?
What are autotrophic beings?
What are deciduous trees?
What are the main characteristics of the age pyramids of developed countries?
What is biotic potential?
What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What are autotrophic beings? What are heterotrophic beings?
Explain water cycle?
How can the abundance and diversity of living beings in the tropical forests be explained?