Energy Pyramid Questions

The diagram does not represent a sustainable energy pyramid in an ecosystem because

• A) energy is never transferred between levels

  in ecosystems

• B) ecosystems never have more than three

  levels of energy transfer

• C) more energy must be available in the

  producer level than in the consumer levels

• D) producers feed on herbivores in most

  ecosystems

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The diagram represents an energy pyramid. Which type of organism could occupy levels B, C, and D of this energy pyramid?

• A) Consumer

• B) Producer

• C) Autotroph

• D) Carnivore

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Which level of the pyramid below is correctly

paired with the type of organism that would

most likely be found at that level in an

ecosystem?

• A) Level A - producers

• B) Level B - carnivores

• C) Level C - herbivores

• D) Level D - decomposers

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The diagram below represents a food pyramid

in an ecosystem. The best explanation for the decrease in the amount of energy transferred to each succeeding level is that much of the energy is

• A) consumed by predators

• B) released as heat

• C) stored within inorganic materials

• D) used in photosynthesis

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The flow of energy in an ecosystem is best described as energy moving in

• A) one direction from the Sun to the

  producers and then to the consumers

• B) one direction from a consumer to a

  producer and then to the Sun as heat and

  light

• C) two directions between the producers that

  are present

• D) two directions, back and forth, between

  the producers and the consumers

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Base your answer on the energy pyramid and on your knowledge of biology. Letter A in the pyramid represents

• A) scavengers

• B) producers

• C) carnivores

• D) herbivores

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Which statement about this energy pyramid is

correct?

• A) Organisms in level 4 receive their energy

  directly from the Sun.

• B) Organisms in level 2 are carnivores.

• C) Organisms in level 2 receive their energy

  from level 3.

• D) Organisms in level 1 are autotrophic

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The diagram represents interactions between organisms in a stable ecosystem. Which statement correctly describes organisms

in this ecosystem?

• A) Organisms in level B obtain their energy

  directly from the Sun.

• B) Organisms in level C obtain their nutrients

  directly from organisms in level D.

• C) Organisms in level A are herbivores.

• D) Organisms in level D are heterotrophic.

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

• 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

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The diagram represents an energy pyramid for an ecosystem in the Australian outback.

Dingos are an introduced species in Australia that are outcompeting many native species. Which of the

current environmental problems most likely resulted directly from the introduction of dingos to Australia?

• A) vanishing of kangaroo grasses

• B) near extinction of wallabies

• C) forests overrun with koalas

• D) increase in the kookaburra population

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