Multiple Choice
In general, the biomass in an ecosystem will be greatest at the trophic level comprising __________.
1160
views
52. Ecosystems
Introduction to Ecosystems
Back52. Ecosystems
Introduction to Ecosystems
- Multiple ChoiceWhat is the main abiotic reservoir for elements, such as calcium and phosphorus, involved in local biogeochemical cycles?1468views1rank
- Multiple ChoiceIn ecosystems, organisms at the highest trophic levels usually contain less collective biomass than the organisms at lower trophic levels because __________.1464views
- Multiple ChoiceWhich of the following statements is correct?1004views
- Multiple ChoiceThe global water cycle supports a net flow of atmospheric water vapor __________.1262views
- Multiple ChoiceLocal conditions such as heavy rainfall or the removal of plants may limit the amount of nitrogen, phosphorus, or calcium available to a particular ecosystem, but the amount of carbon available to the system is seldom a problem. Why?1380views1rank
- Multiple ChoiceBy which process is carbon dioxide released from plants back to the atmosphere?1505views
- Multiple ChoiceWhich of the following is a key part of the carbon cycle?1524views1rank
- Multiple ChoiceBacteria are especially important in making __________ available to plants.1032views
- Multiple ChoiceThe direct product of nitrogen fixation is __________.1348views
- Multiple ChoiceWhich of the following is true of the nitrogen cycle?1314views
- Multiple ChoiceThe phosphorus cycle lacks a(n) __________ component.1430views
- Textbook Question
Which of the following organisms is incorrectly paired with its trophic level?
a. Cyanobacterium—primary producer
b. Grasshopper—primary consumer
c. Zooplankton—primary producer
d. Fungus—detritivore
870views - Textbook Question
What is the main global reservoir of nitrogen?
927views - Textbook Question
Add labels to the figure that follows, which illustrates the interacting factors in a declining population that contribute to the extinction vortex.
993views