Ecology part 2

3. a representation of energy, numbers, Or biomass relationships in ecosystems
4. any factor that restricts the size of a population
6. the land area drained by a particular river; also called a drainage basin
7. large geographical region defined by climate (precipitation and temperature) with a specific set of biotic and abiotic features
9. a body of water that is low in nutrients
12. the movement of matter through the biotic and abiotic environment
14. level of an organism in an ecosystem depending on its feeding position along a food chain
16. the maximum population size of a particular species that a given ecosystem can sustain

1. a sequence of organisms, each feeding on the next, showing how energy is transferred from one organism to another
2. the series of processes that cycle water through the environment
3. the function a species serves in its ecosystem, including what it eats, what eats it, and how it behaves
5. the series of processes in which nitrogen compounds are moved through the biotic and abiotic environment
8. the abiotic conditions within which a species can Survive
10. representation of the feeding relationships within a community
11. the mass of living organisms in a given area
13. a body of water that is rich in nutrients
15. the biogeochemical cycle in which carbon is cycled through the lithosphere, atmosphere, hydrosphere, and biosphere