Ecology Summer Assignment

1. leeches attach to and feed off the blood of animals to gain nutrition to the detriment of the other organism *

1 point

2. layer of the atmosphere containing the ozone layer *

1 point

3. an overlapping zone between ecosystems *

1 point

4. turbidity, temperature, transparency *

1 point

5. hunts for its food *

1 point

6. range of conditions with the highest population density *

1 point

7. range of conditions in which organisms survive, but do not thrive *

1 point

8. anything that inhibits the growth, and development of a population; examples: climate, too many predators *

1 point

9. process by which producers convert sunlight to glucose *

1 point

10. fungi and bacteria *

1 point

11. layer of the atmosphere where people and animals live *

1 point

12. have a broad niche; adapt well to changing conditions *

1 point

13. groups of different interacting species *

1 point

14. Asian long-horned beetle in NY *

1 point

15. when two different species fight for a food source or territory *

1 point

16. the parts of a niche that are actually used by the species (reduced because of competition) *

1 point

17. frogs, lichens, birds of prey *

1 point

18. grey wolves, sea otters, sea stars *

1 point

19. the role of an organism in an ecosystem *

1 point

20. process by which deep sea bacteria convert hydrogen sulfide gas into nutrition *

1 point

21. carpenter ants, termites, worms *

1 point

22. contribute to the ecosystem by consuming “leftovers” which aids in the decomposition process

1 point

23. consists of the Earth’s crust and upper mantle *

1 point

24. prone to endangerment when environmental conditions change *

1 point

25. all living organisms and their physical abiotic environment

1 point

26. bees get the nectar they need to make honey by traveling between flowers and bring pollen from one plant to another, resulting in pollination *

1 point

27. the entire range of conditions that supports any growth of a species

1 point

28. the base of a biomass pyramid *

1 point

29. shark and remora relationship *

1 point

30. a group of the same species *

1 point

31. 99% of the biosphere exists in the thermosphere *

1 point

True

False

32. The biosphere and ecosphere are synonymous terms. *

1 point

True

False

33. The highest concentration of beneficial ozone is located in the upper stratosphere. *

1 point

True

False

34. Primary consumers are heterotrophs. *

1 point

True

False

35. Energy can be recycled in the environment. *

1 point

True

False

36. Energy degradation in a food chain is best explained by the First Law of Thermodynamics *

1 point

True

False

37. silicon and oxygen are most abundant elements in this region *

1 point

(A) lithosphere

(B) hydrosphere

(C) atmosphere

(D) troposphere

(E) stratosphere

38. lowest layer of the atmosphere *

1 point

(A) lithosphere

(B) hydrosphere

(C) atmosphere

(D) troposphere

(E) stratosphere

39. the region that is 480km in depth, but the bottom 12km consists of the highest concentration of oxygen *

1 point

(A) lithosphere

(B) hydrosphere

(C) atmosphere

(D) troposphere

(E) stratosphere

40. makes up 71% of Earth’s surface *

1 point

(A) lithosphere

(B) hydrosphere

(C) atmosphere

(D) troposphere

(E) stratosphere

41. Which of the following is true of the food web shown? *

1 point

(A) aphids eat centipedes

(B) slugs are omnivores

(C) snails prey on ground beetles

(D) frogs are tertiary consumers

(E) garden plants are herbivorous

42. Most of the energy put into the food chain *

1 point

(A) is in the form of heat

(B) is converted to biomass by the end of the chain

(C) is recycled by the end of the chain

(D) exits in the form of low-quality waste heat

(E) is used efficiently by the end of the chain

43. In the diagram below, which organisms are correctly paired with their nutritional roles? *

1 point

(A) hawk - decomposer; insect-eating bird - parasite

(B) mouse - autotroph; flower seed - heterotroph

(C) mountain lion - predator; bark beetle - herbivore

(D) grasshopper - carnivore; grass - autotroph

(E) snake – omnivore; mushroom – detritivore

44. A fundamental concept of ecology is that living organisms *

1 point

(A) are independent and do not interact with each other or with the physical environment.

(B) do not interact with other living organisms, but do interact with the physical environment

(C) interact with each other, but do not interact with the physical environment

(D) interact with other living organisms and interact with the physical environment

45. Which of the following statements is true of tertiary consumers in an ecosystem? *

1 point

(A) There are more secondary consumers than tertiary consumers.

(B) They are eaten by secondary consumers.

(C) They contain the most biomass out of all of the trophic levels.

(D) They are the largest trophic level.

(E) This level of the food chain has the highest amount of diversity.

46. Which trophic level does a lion belong to *

1 point

(A) level 1 - producers

(B) level 2 - primary consumers

(C) level 2 – secondary consumers

(D) level 3 - secondary consumers

(E) level 3 – tertiary consumers

47. What percentage of energy is generally said to be passed upwards each successive level in the biomass-energy pyramid? *

1 point

10%

30%

50%

70%

90%

48. Approximately what percentage of the solar energy that strikes the Earth is used for photosynthesis by plants? *

1 point

1%

10%

21%

71%

78%

49. The second trophic level of a typical biomass pyramid consists of *

1 point

(A) producers

(B) primary consumers

(C) secondary consumers

(D) carnivores

(E) detritivores

50. Which term (or terms) can be used to describe a city rat? *

1 point

(A) omnivore

(B) saprophyte

(C) heterotroph

(D) A and C, only

(E) A, B, and C

51. Which of the following reasons account for the decrease in energy passed on to each successive trophic level? *

1 point

(A) metabolic heat loss

(B) not all biomass is consumed at each level

(C) the increased number of organisms at high levels use up the excess energy

(D) A and B, only

(E) A, B, and C

52. Which of the following organisms occupies the trophic level of greatest biomass? *

1 point

(A) herbivores

(B) producers

(C) primary consumers

(D) secondary consumers

(E) tertiary consumers

53. In the food web, which animals are tertiary consumers? *

1 point

(A) rabbits and sparrows

(B) sparrows and hawks

(C) snakes and hawks

(D) frogs and foxes

(E) mice and grasshoppers

54. Organisms that have the exact same source of nutrition within a food web can best be described as *

1 point

(A) providing links in the food chain

(B) occupying the same trophic level

(C) being omnivores

(D) being herbivores

(E) being tertiary consumers

55. In which level would a monarch caterpillar that feeds on the milkweed plant belong to? *

1 point

(A) 1

(B) 2

(C) 3

(D) 4

56. If the first trophic level represents an ecosystem with 100,000 kcal available to its producers, how much energy is available for the tertiary consumers in the ecosystem? *

1 point

(A) 100,000 kcal

(B) 10,000 kcal

(C) 1,000 kcal

(D) 100 kcal

57. In a forest food chain, the least amount of energy would flow to which of the following organisms? *

1 point

(A) herbivores

(B) producers

(C) primary consumers

(D) secondary consumers

(E) tertiary consumers

58. Which of the following organisms occupies the lowest trophic level? *

1 point

(A) lion

(B) hawk

(C) shark

(D) cow

(E) spider

59. A food chain represents *

1 point

(A) a list of what one organism eats

(B) the flow of energy from one organism to another

(C) links of what animals live together

(D) the way that food is produced in an ecosystem

60. The chart below shows three ecological terms used to describe levels of organization on Earth. Which choice best represents the relationship of these ecological terms? *

1 point

A

B

C

D

61. Which statement best describes an ecosystem maintaining a state of approximate equilibrium? *

1 point

(A) Nutrients from decayed organisms are recycled in a forest ecosystem by decomposers.

(B) All the frog species in a South American rain forest become extinct.

(C) A mutation spreads through a species of bacterium, making them unable to decompose wastes.

(D) Mice are released into a field ecosystem as food for a declining predator population.

62. What is the term used to describe the transitional zone in which one ecosystem merges with an adjacent one? *

1 point

(A) ecoboundary

(B) ecotone

(C) biotransition zone

(D) biosphere

(E) ecotranzonation

63. “True” decomposers that secrete enzymes to absorb nutrition are known as *

1 point

(A) scavengers

(B) detritus feeders

(C) detritovores

(D) saprophytes

(E) specialists

64. In deep sea environments, by what process do bacteria convert sulfur compounds to organic sugars? *

1 point

(A) aphotosynthesis

(B) modified photosynthesis

(C) chemosynthesis

(D) saprophytic nutrition

(E) succession

65. Which type of organism that ordinarily inhabits a lake ecosystem would not be found in level B because of the lack of light penetration? *

1 point

(A) decomposers

(B) scavengers

(C) carnivores

(D) producers

(E) omnivores

66. A possible food chain represented by the diagram could be *

1 point

(A) plant --> grasshopper --> frog --> fish

(B) hawk --> plant --> grasshopper --> frog

(C) grasshopper --> fish --> frog --> plant

(D) plant --> hawk --> frog --> fish

67. The amount of light received by the pond would be considered a(n) *

1 point

(A) biotic limiting factor

(B) abiotic limiting factor

(C) trophic level

(D) ecotone

68. Which of the following are necessary to sustain life on Earth? *

1 point

(A) I, only

(B) II, only

(C) III, only

(D) I and III, only

(E) I, II, and III

69. Almost all of the Earth's weather occurs in the: *

1 point

(A) exosphere

(B) stratosphere

(C) mesosphere

(D) thermosphere

(E) troposphere

70. The ozone layer helps life on Earth because ozone *

1 point

(A) modifies the normal El Niño weather pattern

(B) reflects insolation from the Sun

(C) absorbs damaging ultraviolet radiation from the Sun

(D) deflects winds from a straight line to a curved path

71. Which formula correctly illustrates the process of photosynthesis? *

1 point

(A) C6H12O6 + H2O --> CO2 + O2 + energy

(B) O2 + H2O --> energy + CO2 + C6H12O6

(C) CO2 + H2O + energy --> O2 + C6H12O6

(D) CO2 + C6H12O6 + energy --> H2O + O2

72. Which level of biological organization includes the greatest total number of species? *

1 point

(A) community

(B) ecosystem

(C) population

(D) biosphere

73. What does the diagram best represent? *

1 point

(A) community

(B) ecosystem

(C ) population

(D) biosphere

74. The abiotic factors of a given area include the

1 point

(A) animals

(B) climatic conditions

(C) plants

(D) decomposers

Clear selection

75. Which term refers to the behavior of two species attempting to use the same living space, food source, and water source? *

1 point

(A) saprophytic

(B) competitive

(C) predatory

(D) symbiotic

76. During its annual migration, the red knot, a medium-size shorebird, flies the entire length of North and South America. During one critical stop to feed on the eggs of horseshoe crabs, the birds nearly double their body mass. The relationship between the red knot and the horseshoe crab is that of *

1 point

(A) parasite–host

(B) consumer–producer

(C) scavenger–producer

(D) predator–prey

77. Which relationship best describes the interactions between lettuce and a rabbit? *

1 point

(A) predator — prey

(B) producer — consumer

(C) parasite — host

(D) decomposer — scavenger

78. Which of the following would be considered a specialist species? *

1 point

(A) pandas

(B) rats

(C) cockroaches

(D) raccoons

Option 5

79. Two interactions between organisms are shown in the table below. X and Y do not represent the same organisms in the two interactions. Which statement best describes the relationship between organism X and organism Y in each interaction? *

1 point

(A) Organism X is positively affected by the relationship and organism Y is negatively affected.

(B) Organism X is negatively affected by the relationship and organism Y is positively affected.

(C) Both organisms are positively affected by the relationship.

(D) Both organisms are negatively affected by the relationship

80. Which organisms would most likely be found at level A? *

1 point

(A) birds

(B) worms

(C) algae

(D) mammals

81. Which represents the correct flow of energy through an ecosystem?

1 point

(A) consumer, decomposer, producer, Sun

(B) producer, consumer, decomposer, Sun

(C) Sun, decomposer, consumer, producer

(D) Sun, producer, consumer, decomposer

Clear selection

82. The reason that producers are at the base of almost all energy pyramids and food chains is

1 point

(A) most organisms build their homes on or near producers

(B) plants are the least abundant organisms on Earth

(C) producers are strong and form a good base for the food chain or pyramid

(D) most organisms use food, directly or indirectly, made by the producers

Clear selection

83. The net primary production of a pine forest on a lava flow on Mount Fuji is about 180,000kcal/m2/yr, and the plant respiration is estimated to be 110,000kcal/m2/yr . Using the primary productivity formula (NPP = GPP – R) formula, what is the total amount of energy transferred during photosynthesis for this ecosystem? *

1 point

(A) 70,000 kcal/m2/yr

(B) 100,000 kcal/m2/yr

(C) 190,000 kcal/m2/yr

(D) 290,000 kcal/m2/yr

84. Which of the following combinations are all consumers? *

1 point

(A) deer, rabbit, owl

(B) grass, snake, mouse

(C) vegetables, rabbit, owl

(D) tree, vegetables, grass

85. Which organisms are in competition for the vegetables? *

1 point

(A) snakes and mice

(B) rabbits and owls

(C) deer and rabbits

(D) mountain lions and deer

86. If the number of owls was to increase, the number of mice would

1 point

(A) increase

(B) decrease

(C) remain the same

Clear selection

87. A diagram frequently used in ecological studies is shown to the right. This diagram can be used to represent the

1 point

(A) dependency of animal survival on physical conditions in an ecosystem

(B) loss of energy from various groups of organisms in an ecosystem

(C) competition among species in an ecosystem

(D) mechanisms that maintain homeostasis in the plants in an ecosystem

Clear selection

88. According to the Second Law of Thermodynamics, *

1 point

(A) energy can neither be created nor destroyed, only changed in form

(B) energy can be destroyed but not created

(C) the entropy of the universe is continually fluctuating between zero and infinity

(D) the entropy of the universe tends to increase

89. Burmese pythons are large snakes that have been introduced into the Florida Everglades ecosystem. Burmese pythons and alligators hunt the same prey. One likely effect of the introduction of the pythons is that *

1 point

(A) alligators will have more prey available

(B) pythons will become native to the Everglades

(C) alligator populations will decline

(D) pythons will become an endangered species

(E) alligators will outcompete the pythons because they are more accustomed to their native ecosystem

90. “Nature’s early warning system” of the changing health of an ecosystem rests in observations of changing populations of environmentally sensitive organisms such as frogs and lichens. The aforementioned sentence makes reference to the importance of *

1 point

(A) invasive species

(B) generalist species

(C) indigenous species

(D) keystone species

(E) indicator species

91. Parasitism is best represented by the relationship between *

1 point

(A) crocodiles and plovers

(B) fleas and dogs

(C) monarch butterflies and milkweed

(D) sea anemones and clownfish

(E) bears and foxes

92. Which of the following is a characteristic of a keystone species? *

1 point

(A) their presence dictates the survival of the entire community

(B) they evoke a strong emotional response in people

(C) they have a very large population

(D) they provide an early warning of environmental degradation

(E) they are always generalist species

93. When environmental change occurs, which type of species is most prone to extinction because they do not adapt well to such change? *

1 point

(A) generalist species

(B) r-selected species

(C) specialist species

(D) invasive species

94. An earthworm lives and reproduces in the soil. It aerates the soil and adds organic material to it. The earthworm provides a source of food for other organisms. All of these statements together best describe *

1 point

(A) a habitat

(B) autotrophic nutrition

(C) an ecological niche

(D) intraspecific competition

(E) specialist species behavior

95. An ecological relationship in which one species benefits, but another remains unaffected is known as *

1 point

(A) mutualism

(B) commensalism

(C) competitive

(D) parasitism

(E) predator-prey

96. Resource partitioning helps organisms avoid *

1 point

(A) mutualism

(B) commensalism

(C) competition

(D) parasitism

97. Which pair of organisms would most likely compete for the same ecological niche? *

1 point

(A) bacteria and fungi

(B) deer and wolf

(C) tree and fungi

(D) deer and bacteria

(E) grasses and birds

98. Which lettered zone indicates the range of conditions necessary for the ideal growth of this species? *

1 point

(A) A

(B) B

(C) C

(D) D

(E) E

99. Which lettered zone indicates the zone in which organisms survive, but do not thrive? *

1 point

(A) A

(B) B

(C) C

(D) D

(E) E

100. Which lettered zone indicates the zone in which conditions are outside the range of tolerance? *

1 point

(A) A

(B) B

(C) C

(D) D

(E) E