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Unformatted text preview: Habitat – Area where an individual, a species, or a population exists or can exist 4) Know the main trophic levels in a biotic community (biotic structure) and their subdivisions. There are two main types, and each of these can be further subdivided. 5) Know the main difference between a food chain and a food web. Food chain – linear pathway by which energy and matter is transferred in an ecosystem from organism to organism by feeding 6) Approximately what percent of the biomass of one trophic level is passed on to the next trophic level? 10% 7) What are the principle differences between a pioneer community and a climax community? Pioneer Vs. Climax Pioneer community organisms focus on through put of energy and resources-Dominated by annual plants-Shallow roots and lots of seeds Climax community organisms focus on energy budgets and recycling of resources.- Dominated by perennial plants...
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- Spring '08
- Ecology, 10%, 3 km