What is a food chain?
What is the formula of the net primary production (npp)?
What is dry mass?
Explain the analyses provided by the study of human age pyramids?
What is ammensalim?
Explain how are grasslands classified?
What is nuclear pollution?
Define population growth rate?
Define ecological succession?
What are the destinations of the organic material fabricated by the producers?
Define population?
What is the group of aquatic beings composed of large number of photosynthetic beings?
Define water cycle?
How do populations of predators and preys vary in predatism?
Define ammensalim?