Terms in this set (66)
1. The most probable chain of cause and effect contributing to patterns of earth's biomes is
Incoming solar energy and the earth's geometry create air and ocean currents which create climate patterns which create biome patterns.
2. The cycle most responsible for linking the other biogeochemical cycles is the:
3. Which of the following is not one of the common phosphorus reservoirs in the ecosystem?
4. The two most important factors in climate are
temperature and precipitation.
5. Cone- bearing trees are characteristic of the
6. The following choices list levels of organization of matter that claim the attention of ecologists. Which correctly lists these levels in sequence from narrower to broader focus?
7. All of the following are abiotic factors except
11. Most of the energy input in a food chain is
degraded to low-quality heat.
12. Transfer of carbon between organisms depends primarily on
photosynthesis and cellular respiration.
13. The rapid doubling of a water hyacinth population in nutrient-rich waters with no predators is an example
positive feedback loop.
14. Natural ecosystems achieve sustainability through
use of one-way solar energy flow and efficient recycling of nutrients.
15. Which of the following ecosystems has the highest average net primary productivity?
swamps and marshes
16. Earth is essentially a(n) system regarding matter and a(n) system regarding energy.
17. Which of the following statements is false?
The distance between earth and the sun is the single greatest determining factor involved in the creation of seasons, with the summer season in each respective hemisphere corresponding to the time that portion of earth is closest to the sun
18. The form of nitrogen most usable to plants is
19. All of the following increase the amount of carbon dioxide in the atmosphere except
21. Biome type found here (
): (refer to diagram)
22. Biome type found here (
): (refer to diagram)
23. The phenomenon associated with the moisture and mountains: (refer to diagram)
C. rain shadow effect
25. If there are 500,000 kilocalories (kcal) in the producer level, how many kcal will become incorporated in the tissues of the secondary consumers?
26. How many kcal will become incorporated in the tissues of the tertiary consumers?
27. The consumer group represented by the perpendicular bar labeled "Y" is known as the:
28. What is Net Primary Productivity?
is the rate at which energy for use by consumers is stored in biomass
29. A community of living organisms interacting with one another and the physical and chemical factors of their nonliving environment is called
30. Which of the following lists the major steps of cultural eutrophication, in the order in which they occur?
nutrient input, algal bloom, nutrient depletion, algal die-off, decomposition, decreased dissolved oxygen, fish suffocate
32. Important limiting factors for aquatic ecosystems include:
I. temperature and sunlight
II. dissolved oxygen content
All of the above
33. According to the graph, how much dissolved oxygen will there be when the water temperature is 15oC? (refer to graph)
34. How many states flow into the watershed called the Chesapeake Bay? (refer to map)
35. What happens in areas of low or no concentration of oxygen
most life dies off
36. What are the goals of the Clean Water Act?
I. Eliminate the discharge of pollutants in U.S. waterways
II. Attain water quality levels that make U. S. waterways safe for fishing and swimming
III. Identify point sources and non-point sources of pollution
I and II only
37. Which species has a better ability to adapt to the changing environment? (refer to diagram above)
Water boatman and Whirligig
38. The depletion of the world's marine fish stocks due to overfishing is a classic example of:
The tragedy of the commons.
39. When organisms die, their nitrogenous organic compounds are converted to simple inorganic compounds such as ammonia through the process of
40. Nitrogen gas is converted to ammonia through:
41. Inorganic nitrogen-containing ions are taken in by the plants and then converted into organic molecules through
42. Ammonia is converted to nitrate and finally to nitrogen gas through the process of
43. The term of phrase which is synonymous with "drainage basin"?
II, and III
44. Which of the following best illustrates an abiotic component of the environment affecting a biotic component of the environment?
Low phosphorus content in soil limits the growth of vegetation.
45. Which of the following best illustrates point-source pollution?
Smokestack emissions from a large smelting company
46. Which of the following is a measure of the amount of suspended material in water?
47. Which of the following is a common characteristic of lakes undergoing cultural eutrophication?
Increased levels of plant nutrients
48. Lakes that are characterized by high water clarity and low concentrations of dissolved minerals are classified as
49. In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point source input of organic matter into the river. This effect is due to
Increased bacterial activity as turbidity increases
50. Which of the following is most likely to increase both the nutrient levels and the bacterial content of lake water?
Runoff from a nearby hog farm
51. Which factors would have a direct impact on the amount of DO in a stream?
A & C only
52. A way to decrease the impact of urban storm water run-off would include the following EXCEPT
Clean up spilled brake fluid, oil, grease, and antifreeze by hosing off into gutters
53. Macro invertebrates can be used to determine water quality by calculating
56. Believes that all living things have an inherent value
57. Holistic world view. minimum disturbances of natural processes
58. People are environmental managers and resources should be conserved for human use.
59. Deep ecologists
61. Island "H" is 100 miles (162 kilometers) from the mainland (source population) and Island "I" is also 100 miles from the mainland. Island "H" is seven times the size of Island "I". Given this information, which of the following statements is most likely false?
Island "I" can support larger populations because there will be less competition due to a smaller habitat area, as compared to "H".
62. A species which serves as an early warning sign that a community or ecosystem is being altered or degraded is termed:
an indicator species
63. The ability of a living system to bounce back after an external disturbance is:
64. Primary succession must occur prior to secondary succession in order to:
Change rock to soil
65. The dividing up of limited assets, materials, and other desired items so that species with similar needs use them at different times, in different ways, or in different places is known as:
66. Which of the following can be briefly described in the phrase, "The niches of two species cannot overlap completely or significantly for an extended period."
Competitive exclusion principle
67. The process of natural selection is the following:
survival of the fittest
68. A species that has a broad niche, that is they can live in many places, eat a variety of foods and tolerate a wide range of environmental conditions is:
a generalist species
69. The portion of a specific resource (biological, chemical, and physical) which a particular species actually utilizes is known as the:
70. What evolutionary process occurs through geographic isolation and reproductive isolation?
71. The gradual change in species composition of a given area is called:
72. Which of the statements below is correct? regarding the table above.
Ecosystem Y has the highest species diversity because this is a measure of both the number of species and their abundance
73. A diversity index of an ecosystem typically takes into account
number of species and their abundance.
74. An ecological niche is
where a species lives and what it does in its environment
75. Which of the following is an example of mutualism?
An insect pollinating an orchid flower