Intro-Review Completion Complete each sentence or statement.

Complete each sentence or statement.
1. The scientific study of the relationship between organisms and their environment is called ________.
2. The biotic and abiotic components of the environment interacting together are referred as a(n) ________.
3. A group of individuals of the same species occupying a given area is referred to as a(n) ________.
4. All populations of different species living and interacting within an ecosystem are referred to as a(n) ________.
5. The study of the impact of humans on the natural environment is referred to as ________ science.
6. An "educated guess" that a scientist poses to explain an observed phenomenon is referred to as a(n) ________.
7. A basic truth, often arrived at through inductive reasoning or supported through various lines of reasoning is a
8. Broad areas with similar climatic conditions are termed _____________________.
9. In a food chain that consists of grass--> grasshoppers--> spiders --> mice --> snakes --> hawks, the organisms
that possess the most biomass within the community is (are) the
10. The function or ‘job’ of an organism an ecosystem is termed its ____________
11. The word ‘Ecology’ comes from
12. The non living components of an ecosystem are termed
13. In what ways do organisms interact with each other?
14. The relative abundance of different species in an ecosystem is termed
15. Organisms which serve as the basis of any ecosystem are the
16. In terms of energy relation ships heterotrophs must _____________________
17. Anthropogenic climate change is that associated with
18. An invasive species is _______________________
19. A standard against which future measurments or changes in an ecosystem or to a population may be gauged is
termed a ________________
20. In terms of its characteristic of loosing its leaves each fall the vally oak is termed a ____________ oak.
21. An area flanking a stream, and thus influenced by the availability of water would be considered a
________________ habitat.