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Q 1/23
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1. What is the role of mountain lions in this ecosystem?
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d. carnivore
b. omnivore
c. producer
a. herbivore
Q 2/23
Score 0
2. What group of organisms are missing from this food web?
30
d. herbivores
a. producers
b. decomposers
c. carnivores
23 questions
Q.
1. What is the role of mountain lions in this ecosystem?
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30 sec
Q.
2. What group of organisms are missing from this food web?
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3. Hunting has just started to be allowed in the ecosystem above, and humans are killing many of the deer. A reduction in the deer population will affect the amount of energy this ecosystem is able to provide for which of the following organisms?
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4. Which of the following could possibly increase the total amount of energy the sparrow population receives within the food chain?
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5. If additional sparrows were introduced into this ecosystem, there would most likely be an immediate decrease in the
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6. Which organisms in the food web are competing for the same resource?
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7. Which organism labeled in this food web provides energy, either directly or indirectly, to all of the other organisms?
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8. What do the arrows in the diagram represent?
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9. Which of the following correctly shows one path that energy would flow through this ecosystem?
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10. Four levels of an energy pyramid are represented. Which statement about this energy pyramid is correct?
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11. Which level has the most energy available to it?
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12. Why are there usually just a few organisms at the top of an energy pyramid?
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13. Lightning from a thunderstorm strikes a tree that falls to the forest floor and dies. During the next few years the dead tree undergoes many changes. What organisms are most likely responsible for the breakdown of the tree?
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14. Which graph shows what most likely would happen to the population of a certain animal if a new predator were introduced at time “A”?
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15. A rabbit population has increased noticeably in the past ten years. Which of the following is a reasonable hypothesis for this population growth?
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16. The chart above summarizes the effect of commercial fishing on a local Atlantic Cod fish population over a 9-year period. According to the chart, it can be concluded that:
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17. What human activity has caused this change in the Atlantic Cod population?
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18. Competition within a pack of wolves may increase if there is an increase in the
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19. What is the ultimate source of all energy on Earth?
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20. Red-billed oxpeckers are birds. They eat parasites that bite and bother impalas. The impala gets rid of annoying parasites, and the red-billed oxpeckers get a meal. The relationship between the red-billed oxpecker and the impala is an example of
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21. The Kudzu plant was introduced to the United States from China. People thought it would make a nice shade plant for their front porches. Since then, Kudzu has spread throughout the South, taking over the habitat and resources of many native species. This problem with the Kudzu is an example of
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Q.
22. In Southeast Asia, people cut and clear the rainforest so that they can plant and grow the Oil Palm Tree. This is an example of
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23. The Yew tree naturally grows in the Himalayas. Its bark contains a compound called Taxol, which is used to fight cancer. Because of the importance of Taxol in their bark, Himalayan Yews have been taken in huge numbers and are now almost extinct. This limits the number of Yews that can be used for future cancer-fighting medicine. This is an example of
