52. Ecosystems
Introduction to Ecosystems
52. Ecosystems
Introduction to Ecosystems
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- Multiple ChoiceWhich of the following is an ecosystem?
- Multiple ChoiceThe biggest difference between the flow of energy and the flow of chemical nutrients in an ecosystem is that __________.
- Multiple ChoiceIn an ecosystem, what will eventually happen to all incoming energy?
- Multiple ChoiceThe main decomposers in an ecosystem are __________.
- Open QuestionWhich of the following organisms is incorrectly paired with its trophic level?a. cyanobacterium—primary producerb. grasshopper—primary consumerc. zooplankton—primary producerd. fungus—detritivore
- Open QuestionWhat is the main global reservoir of nitrogen?
- Open QuestionAdd labels to the figure that follows, which illustrates the interacting factors in a declining population that contribute to the extinction vortex.
- Open QuestionWhich of these ecosystems has the lowest net primary production per square meter?a. a salt marshb. an open oceanc. a coral reefd. a tropical rain forest