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ENVIRONMENTAL SCIENCE 15Th Edition By Eldon Enger - Test Bank
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ENVIRONMENTAL SCIENCE 15Th Edition By Eldon Enger - Test Bank

ENVIRONMENTAL SCIENCE 15Th Edition By Eldon Enger - Test Bank   Instant Download - Complete Test Bank With Answers     Sample Questions Are Posted Below   Environmental Science, 15e (Enger) Chapter 5   Interactions: Environments and Organisms   1) Which of the following is an example of an abiotic factor? A) the number of individuals …

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ENVIRONMENTAL SCIENCE 15Th Edition By Eldon Enger – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Environmental Science, 15e (Enger)

Chapter 5   Interactions: Environments and Organisms

 

1) Which of the following is an example of an abiotic factor?

  1. A) the number of individuals of a particular species living in a community
  2. B) the interactions between different species in a community
  3. C) the diversity of prey and predator species in a community
  4. D) the climate of the community in which the species mentioned above inhabit

 

Answer:  D

Section:  05.01

Topic:  Environment

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

2) Natural selection is the process that determines

  1. A) who an individual mates with.
  2. B) which scientist publishes their experiments.
  3. C) which individuals within a species will reproduce and pass their genes to the next generation.
  4. D) how active an animal is at night.

 

Answer:  C

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

3) The development of herbicide resistance in populations of weeds over several generations is an example of

  1. A) social Darwinism.
  2. B) biogeochemical cycles.
  3. C) organic farming.
  4. D) evolution.

 

Answer:  D

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

4) Charles Darwin is generally credited with

  1. A) developing the concept of sexual dimorphism.
  2. B) developing the concept of natural selection.
  3. C) developing the concept of genetic concept.
  4. D) All of these are correct.

 

Answer:  B

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

5) Among plants, a condition that results in an increase in the number of sets of chromosomes, is called

  1. A) multi-genetics.
  2. B) polyploidy.
  3. C) diploid.
  4. D) haploid.

 

Answer:  B

Section:  05.02

Topic:  Speciation

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

6) Extinction of organisms is

  1. A) very unusual.
  2. B) was more common in the past.
  3. C) not occurring today.
  4. D) a common event today.

 

Answer:  D

Section:  05.02

Topic:  Extinction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

7) Ecologists distinguish two different kinds of competition. An example of one is

  1. A) intraspecific competition occurs between organisms of the same species.
  2. B) interspecific competition occurs between animals and plants.
  3. C) intraspecific competition results in one species eliminating another species.
  4. D) None of the statements is correct.

 

Answer:  A

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

8) This concept states that no two species can occupy the same ecological niche in the same place and the same time.

  1. A) Natural Selection
  2. B) Genetic Drift
  3. C) Competitive Exclusion Principle
  4. D) Niche Exclusion

 

Answer:  C

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

9) Two organisms that interbreed and produce fertile offspring are said to be individuals of the same

  1. A) community.
  2. B) niche.
  3. C) habitat.
  4. D) species.

 

Answer:  D

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

10) When a population becomes isolated from another population of the same species over a long period of time

  1. A) gene exchange is likely to occur.
  2. B) competition is increased.
  3. C) speciation is likely to occur.
  4. D) extinction is likely to occur.

 

Answer:  C

Section:  05.02

Topic:  Evolution

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

11) Ecologists have traditionally categorized the roles of organisms in ecosystems into three broad categories that include

  1. A) parasites.
  2. B) symbionts.
  3. C) decomposers.
  4. D) carnivores.

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

12) The use of fertilizers in agriculture has significantly altered several nutrient cycles including

  1. A) nitrogen.
  2. B) carbon.
  3. C) hydrologic.
  4. D) All of these are correct.

 

Answer:  A

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

13) The chief limiting factor to the success of most trout species is

  1. A) the ability to reproduce.
  2. B) the dissolved oxygen content in water.
  3. C) the amount of plant biomass.
  4. D) All of these are correct.

 

Answer:  B

Section:  05.01

Topic:  Limiting Factors

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

14) What is the term used to describe food chains which overlap and intersect?

  1. A) food web
  2. B) detrital food chain
  3. C) natural selection
  4. D) range of tolerance

 

Answer:  A

Section:  05.04

Topic:  Ecosystems; Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

15) The small amount of dissolved oxygen found in warm water is considered a ________ to the success of many fish species.

  1. A) biotic factor
  2. B) limiting factor
  3. C) niche
  4. D) None of these are correct

 

Answer:  B

Section:  05.01

Topic:  Environment

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

16) Grazing animals and the grasses they eat have both evolved in response to each other’s influence. This process is known as

  1. A) coevolution.
  2. B) extinction.
  3. C) competitive exclusion principle.
  4. D) interspecific competition.

 

Answer:  A

Section:  05.02

Topic:  Evolution

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

17) Which of the following organisms is a primary producer?

  1. A) fungi
  2. B) grasshoppers
  3. C) grass
  4. D) decomposer

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

18) Which of the following organisms is a secondary consumer?

  1. A) wolf
  2. B) elk
  3. C) mouse
  4. D) bacteria

 

Answer:  A

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

19) Which of the following is NOT a decomposer?

  1. A) fungi
  2. B) bacteria
  3. C) moss
  4. D) None of these are correct.

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

20) In a mutualistic relationship

  1. A) one organism benefits while the other is unaffected.
  2. B) both species benefit.
  3. C) one species benefits while the other is harmed.
  4. D) endoparasites outnumber ectoparasites.

 

Answer:  B

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

21) Each step in the flow of energy through an ecosystem is known as a

  1. A) food chain.
  2. B) trophic level.
  3. C) plateau of consumption.
  4. D) food web.

 

Answer:  B

Section:  05.04

Topic:  Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

22) The relationship between frogs and insects is an example of

  1. A) intraspecific competition.
  2. B) coevolution.
  3. C) a predator-prey relationship.
  4. D) competitive exclusion.

 

Answer:  C

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

23) Biting insects that transmit parasites are known as

  1. A) vectors.
  2. B) endoparasites.
  3. C) keystone species.
  4. D) None of these are correct.

 

Answer:  A

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

24) Tapeworms living inside the intestines of their host are an example of what type of relationship?

  1. A) predator/prey relationship
  2. B) commensalism
  3. C) ectoparasitism
  4. D) endoparasitism

 

Answer:  D

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

25) Which of the following elements is the most common limiting factor to plants in naturally occurring soil?

  1. A) nitrogen
  2. B) phosphorous
  3. C) oxygen
  4. D) carbon

 

Answer:  A

Section:  05.01

Topic:  Limiting Factors

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

26) What kind of plant has nitrogen-fixing bacteria living in their roots?

  1. A) deciduous trees
  2. B) mosses
  3. C) legumes
  4. D) ferns

 

Answer:  C

Section:  05.04

Topic:  Nitrogen Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

27) Phosphorous is released from rocks by which process?

  1. A) bacterial decomposition
  2. B) weathering and erosion
  3. C) photosynthesis
  4. D) All of these are correct.

 

Answer:  B

Section:  05.04

Topic:  Phosphorus Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

28) Carbon enters the carbon cycle in the form of

  1. A) lipids formed in photosynthesis.
  2. B) carbonate in rock.
  3. C) atmospheric carbon dioxide.
  4. D) decomposition of organic material.

 

Answer:  C

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

29) Which of the following is an example of a keystone species?

  1. A) bison
  2. B) sea kelp
  3. C) wolves
  4. D) None of these are correct.

 

Answer:  A

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

30) Which of the following is an example of a detrital food chain?

  1. A) a coniferous forest
  2. B) sewage treatment plant
  3. C) open lake
  4. D) salt marsh

 

Answer:  B

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

31) Polyploidy is an evolutionary mechanism that may result in

  1. A) new plant species.
  2. B) a surge in birthrates in mammals.
  3. C) the baldness trait becoming dominant in men.
  4. D) death if recessive.

 

Answer:  A

Section:  05.02

Topic:  Speciation

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

32) Another name for a nutrient cycle in an ecosystem is a

  1. A) biogeochemical cycle.
  2. B) menstrual cycle.
  3. C) hydrogen cycle.
  4. D) diurnal cycle.

 

Answer:  A

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

33) This meat eater often gets meat from animals that have died by accident or illness, or were killed by other animals.

  1. A) scavenger
  2. B) omnivore
  3. C) carnivore
  4. D) parasite

 

Answer:  A

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

34) The introduction of which organism is correlated with a major disruption to the food web of the Great Lakes?

  1. A) diatoms
  2. B) whitefish
  3. C) zebra mussels
  4. D) Diporeia.

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

35) Indian pipe, a flowering plant, lacks chlorophyll and is not able to do photosynthesis. It obtains food as:

  1. A) a parasite
  2. B) a commensal organism
  3. C) a host
  4. D) a mutualistic organism
  5. E) More than one of these choices is correct.

 

Answer:  A

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

36) Which of the following habitats has rapid decomposition?

  1. A) tundra
  2. B) tropical forests
  3. C) northern forests
  4. D) grasslands
  5. E) swamps

 

Answer:  B

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

37) ________ are a major carbon sink.

  1. A) Oceans
  2. B) Lakes
  3. C) Rivers
  4. D) Ponds

 

Answer:  A

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

38) Phosphorus

  1. A) is found in rocks.
  2. B) is found in teeth.
  3. C) is found dissolved in water.
  4. D) All of the statements are correct.
  5. E) None of the statements are correct.

 

Answer:  D

Section:  05.04

Topic:  Phosphorus Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

39) Agricultural runoff consists of a mixture of compounds that serve as nutrients. The two primary nutrients are ________ and ________.

  1. A) nitrogen; oxygen
  2. B) nitrogen; carbon
  3. C) nitrogen; phosphorus
  4. D) nitrogen; sulfur

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

Which of the following best matches the description?

 

40) Series of stages in the flow of nitrogen in ecosystems.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  K

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

41) Stage in the flow of energy in an ecosystem.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  E

Section:  05.04

Topic:  Ecosystems; Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

42) Animal that eats plants.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  B

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

43) An organism that can manufacture food from inorganic compounds and light energy.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  D

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

44) The place an organism lives.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  M

Section:  05.01

Topic:  Environment

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

45) The flow of carbon from the atmosphere to living organisms and back again.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  N

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

46) Bacteria that convert nitrogen compounds in the soil into nitrogen gas.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  A

Section:  05.04

Topic:  Nitrogen Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

47) Competition between members of different species.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  O

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

48) An organism that eats both plants and animals.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  C

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

49) Competition between members of the same species.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  Q

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

50) Interacting groups of different species in a given area.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  F

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

51) Accumulation of organic material that consists of or are produced by living things.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  L

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

52) Bacteria that convert atmospheric nitrogen gas into forms of nitrogen that plants can use.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  P

Section:  05.04

Topic:  Nitrogen Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

53) Parasite that lives on the outside of its host.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  G

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

54) An environmental condition, the absence of which, prevents the success of an organism.

  1. A) denitrifying bacteria
  2. B) herbivore
  3. C) omnivore
  4. D) producer
  5. E) trophic level
  6. F) community
  7. G) ectoparasite
  8. H) limiting factor
  9. J) secondary consumer
  10. K) nitrogen cycle
  11. L) biomass
  12. M) habitat
  13. N) carbon cycle
  14. O) interspecific competition
  15. P) nitrogen-fixing bacteria
  16. Q) intraspecific competition

 

Answer:  H

Section:  05.01

Topic:  Environment

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

55) Genetic variation among individuals of the same species enables some of these individuals to have a greater chance of obtaining resources and therefore, producing more offspring.

 

Answer:  TRUE

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

56) Genes are distinct pieces of DNA that determine the characteristics an individual displays.

 

Answer:  TRUE

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

57) Everything that affects an organism during its lifetime is known as ecology.

 

Answer:  FALSE

Section:  05.01

Topic:  Ecology

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

58) The carbon cycle is an example of how materials are cycled through ecosystems.

 

Answer:  TRUE

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

59) The biotic component of an organism’s environment is the non-living or physical factors.

 

Answer:  FALSE

Section:  05.01

Topic:  Environment

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

60) Competition between foxes and hawks for the use of mice and rabbits as food is called intraspecific competition.

 

Answer:  FALSE

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

61) About 20 percent of the energy passing from one trophic level to the next is lost.

 

Answer:  FALSE

Section:  05.04

Topic:  Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

62) Symbiotic relationships are those in which organisms live in physical contact with one another.

 

Answer:  TRUE

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

63) Commensal organisms live on another organism and harm the host in the process.

 

Answer:  FALSE

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

64) The niche of an organism is the result of many years of natural selection.

 

Answer:  TRUE

Section:  05.01; 05.02

Topic:  Niche

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

65) At the highest trophic level, there is less energy and fewer organisms than at the lower levels.

 

Answer:  TRUE

Section:  05.04

Topic:  Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

66) Competition between members of the same species is known as intraspecific competition.

 

Answer:  TRUE

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

67) The production of a new species from a previous species is known as mutualism.

 

Answer:  FALSE

Section:  05.02

Topic:  Speciation

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

68) Populations are all organisms of a specific kind that live within a specific geographic region.

 

Answer:  TRUE

Section:  05.02

Topic:  Populations

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

69) If a species becomes isolated from another for a long time as a result of a barrier, speciation will not occur.

 

Answer:  FALSE

Section:  05.02

Topic:  Speciation

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

70) Producers are organisms that are able to use sources of energy to make complex, organic molecules from simple inorganic substances in their environment.

 

Answer:  TRUE

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

71) Consumers are organisms that require no organic matter as a source of food.

 

Answer:  FALSE

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

72) A food chain is a series of organism occupying different trophic levels through which energy passes.

 

Answer:  TRUE

Section:  05.04

Topic:  Ecosystems; Energy Flow

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

73) Detritus are small bits of non-living organic material.

 

Answer:  TRUE

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

74) About 50% of photosynthesis activity takes place in fresh water.

 

Answer:  FALSE

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

75) During the carbon cycle, the same carbon atoms are used over and over again.

 

Answer:  TRUE

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

76) The source of nitrogen in the nitrogen cycle is found in rocks.

 

Answer:  FALSE

Section:  05.04

Topic:  Nitrogen Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

77) The source of phosphate in the phosphorous cycle is the atmosphere.

 

Answer:  FALSE

Section:  05.04

Topic:  Phosphorus Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

78) Conversion of natural ecosystems to agriculture ecosystems can lead to less carbon stored in soil and large plants such as trees.

 

Answer:  TRUE

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

79) Charles Darwin developed the idea of natural selection without understanding the gene concept.

 

Answer:  TRUE

Section:  05.02

Topic:  Natural Selection

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

80) A species that has a narrow range of tolerance to heat, such as a polar bear, should be able to adapt easily to changes in its habitat that occur with global warming.

 

Answer:  FALSE

Section:  05.01

Topic:  Limiting Factors

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

81) Producers use the energy of sunlight to convert inorganic carbon compounds into organic compounds through the process of photosynthesis.

 

Answer:  TRUE

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

82) Processes that remove atoms from short-term nutrient cycles and store them for a long time are known as sinks.

 

Answer:  TRUE

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

83) How are fossil fuels (coal, petroleum and natural gas) thought to have formed? Please be specific about each type of fossil fuel.

 

Answer:  Fossil fuels were formed from the remains of organisms and are a longer term sink that involves hundreds of millions of years. The carbon atoms in fossil fuels at one time were part of the active carbon cycle but were removed from the active cycle when the organisms accumulated without decomposing. The organisms that formed petroleum and natural gas are though to be the remains of marine organisms that got covered by sediments. Coal was formed from the remains of plants that were buried by sediments. Once the organisms were buried their decomposition would be slowed and heat from the earth and pressure from the sediments helped to transform the remains of living things into fossil fuels.

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  manual

Accessibility:  Keyboard Navigation

 

 

 

84) Why are nutrients carried into aquatic ecosystems?

 

Answer:  The nutrients in fertilizers are intended to become incorporated into the bodies of the plants we raise for food. However, if too much fertilizer is applied or if it is applied at the wrong time, much of the fertilizer is carried into aquatic ecosystems.

Section:  05.04

Topic:  Ecosystems

Bloom’s:  1. Remember

Gradable:  manual

Accessibility:  Keyboard Navigation

 

85) Some flowering plants, such as beech drops and Indian pipe, lack chlorophyll and are not able to do ________.

 

Answer:  photosynthesis

Section:  05.03

Topic:  Species Interaction

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

86) Most exotic species are introduced into a new environment accidentally as a result of ________.

 

Answer:  human activity

Section:  05.03

Topic:  Introduced/Exotic Species

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

87) The primary sink for nitrogen is ________ in the atmosphere.

 

Answer:  nitrogen gas

Section:  05.04

Topic:  Nitrogen Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

88) How are humans involved in modifying the carbon cycle? What are the consequences of these actions?

 

Answer:  Answers will vary.

Section:  05.04

Topic:  Carbon Cycle

Bloom’s:  1. Remember

Gradable:  manual

Accessibility:  Keyboard Navigation

 

89) A new threat to the food chain in the Great Lakes is:

  1. A) The small mouth bass
  2. B) The northern pike
  3. C) The Asian carp
  4. D) The yellow-perch

 

Answer:  C

Section:  05.04

Topic:  Introduced/Exotic Species

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

90) Which of the following species has been impacted by climate change?

  1. A) Pacific salmon
  2. B) Bowhead whales
  3. C) Polar bears
  4. D) None of the species have been impacted
  5. E) All of the species have been impacted

 

Answer:  E

Section:  05.04

Topic:  Climate Change

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

91) Excessive growth in aquatic plants and algae is stimulated by:

  1. A) Abundant supplies of nutrients such as phosphorus
  2. B) Cold water
  3. C) Lack of sunlight
  4. D) Lack of nutrients such as phosphorus

 

Answer:  A

Section:  05.04

Topic:  Phosphorus Cycle

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

92) A major reason why animals are moving into urban areas is:

  1. A) Lack of water
  2. B) The building of larger homes
  3. C) Habitat loss
  4. D) Increased agricultural planting

 

Answer:  C

Section:  05.00

Topic:  Habitat

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

93) Clear-cutting of forests:

  1. A) Removes the carbon tied up in the vegetation
  2. B) Increases the rate of erosion
  3. C) Causes the depletion of soil nutrients
  4. D) All of the options are correct
  5. E) None of the options are correct

 

Answer:  D

Section:  05.00

Topic:  Forestry

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

 

 

 

94) The exotic species in the Great Lakes were:

  1. A) All purposely introduced
  2. B) Introduced by accident
  3. C) Introduced specifically by hatcheries
  4. D) Purposely introduced and accidently introduced

 

Answer:  D

Section:  05.04

Topic:  Introduced/Exotic Species

Bloom’s:  1. Remember

Gradable:  automatic

Accessibility:  Keyboard Navigation

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