ECOSYSTEMS AND THEBIOSPHERE
Define the term “ecosystem†in one sentence.
Describe in one short paragraph the general flow of energy andthe cycling of nutrients through ecosystems.
Identify the differences and similarities between a food chainand a food web.
Name and define each trophic level in an ecosystem and cite anexample for each level, using the following terms: producer,primary consumer, secondary consumer, tertiary consumer,decomposer, herbivore, carnivore, omnivore, autotroph, andheterotroph.