ISC Chapter 23

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ISC Chapter 23
2011-11-22 15:40:49
ISC Chapter 23

ISC Chapter 23
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  1. Which of the following would NOT fall into the
    category of environmental factors called abiotic?
    D. coral reefs
  2. Which trophic level contains the least amount of available
    chemical potential energy?
    C. fourth
  3. Where would you expect to find autotrophs in a food chain?
    A. first trophic level
  4. The direction of energy flow in ecosystems ________
    the Second Law of Thermodynamics.
    C. obeys
  5. Biodiversity would be highest in this biome:
    C. tropical rainforest
  6. In which ecological community or biome, would one find the Moon considered an abiotic factor?
    C. estuary
  7. Competition happens between organisms
    D. B and C
  8. During which period of Earth history did the production of
    organic matter exceed the rate of decomposition?
    A. Carboniferous
  9. Carbon dioxide is released to the atmosphere by
    these organisms:
    D. A and B
  10. Human interference in the carbon cycle occurs at
    many places in the cycle and one such interference has resulted a side-effect called:
    B. global warming
  11. Farmers can increase their crop yields because
    humans have been able to make modifications or changes to the natural
    D. A and C
  12. The effect upon planetary temperature of carbon dioxide does not just occur on Earth-it has also been found:
    A. on Venus
  13. Which of the following countries would most resemble
    the horizontal bar graph of population and reproductive
    status of the United States?
    C. United Kingdom
  14. Environmental resistance affects the populations of
    C. all species on Earth
  15. Although China and India have used different means
    to implement human population control with widely differing success, common to both was (and currently still is in the case of India):
    B. strong government influence
  16. Approximately how many people will be added to the Earth between 2004 and 2025?
    B. 1.6 billion
  17. Predators are not always the fastest or strongest organism in an ecosystem; sometimes, a predator may use ________ with which to find or capture its prey.
    D. B and C
  18. Humans may be exclusively herbivores but not exclusively
    carnivores. The reason for the latter condition must ultimately reside in
    C. natural selection or evolution
  19. An organism's functional role within its community:
    B. niche
  20. Scientists who make a scientific study of the relationships
    between organisms and their environment
    C. ecologists
  21. All animals are
    A. consumers
  22. The sequence of organisms feeding on one another
    D. food chain
  23. Cyanobacreria are found on which trophic level
    A. first
  24. Aspen, birch, oak, and maple trees are common to this biome
    B. temperature deciduous forest
  25. Deserts receive less than inches of rain per year
    B. 10
  26. Organisms termed plankton belong to which group
    D. all of these
  27. Organisms that live on the bottom of the ocean are termed
    C. benthic
  28. The limnetic zone is a region found in
    A. lakes
  29. The key word with which to understand the concept of ecological niche
    B. function
  30. The mistletoe plant is considered an ecological organism
    D. parasitic
  31. The ecological relationship between organisms where one benefits and the other is not affected
    C. commensalism
  32. Plants obtain their carbon atoms from
    A. the air
  33. How do animals get the nitrogen they need to form amino acids
    B. by consuming other organisms
  34. A measure of how often a specific gene for a specific characteristics shows up in the individuals of a population
    C. gene frequency
  35. Organism populations are often broken-down for
    study into groups on the basis of:
    D. A and B
  36. Homo sapiens displays a sex ration of
    C. 1:1
  37. The maximum population of organisms an area can support
    C. carrying capacity
  38. The number of organisms of a species per unit area
    D. population density