Food Webs & Energy Transfer
9th - 12th grade
1355 times
Biology
60%average accuracy
3 years ago
carol myers
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q. A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologist observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?
    answer choices
    There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.
    There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels. 
    There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have. 
    There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.
  • Question 2
    30 seconds
    Q. A diagram of a food web is shown below.Which organism receives the least amount of energy from the producers?
    answer choices
    Hawk
    Rabbit
    Grasshopper
    Mouse
  • Question 3
    30 seconds
    Q. The diagram shows the cycling of nutrients in an ecosystem. The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system? 
    answer choices
    Producers
    Consumers
    Decomposers
    Inorganic nutrients
  • Question 4
    30 seconds
    Q. Complete burning of plant material returns carbon primarily to the
    answer choices
    herbivores
    water
    vegetation
    atmosphere
  • Question 5
    30 seconds
    Q. Which of these organisms would most likely be found at the top of an energy pyramid? 
    answer choices
    clams - a primary consumer
    sardines - a primary consumer
    sharks - a secondary consumer
     kelp - a primary producer
  • Question 6
    30 seconds
    Q. The diagram shows the flow of carbon in a terrestrial ecosystem. Which will most likely happen if the decomposers are removed from the carbon cycle? 
    answer choices
     The amount of carbon dioxide in the atmosphere will increase.
    The amount of carbon dioxide in the atmosphere will decrease.
    The amount of carbon dioxide used by producers will increase.
    The amount of carbon dioxide needed by consumers will decrease.
  • Question 7
    30 seconds
    Q. In a process called transpiration, plants get rid of excess water through pores in the leaves called stomata. This excess water is then released into the atmosphere as part of the water cycle. Which of the following terms best describes how the released water enters the atmosphere?
    answer choices
    condensation
    precipitation
    evaporation
    capillary action
  • Question 8
    30 seconds
    Q. The framework of organic molecules essential to all organisms is composed mainly of carbon atoms. Which processes are involved in the cycling of carbon within an environment? 
    answer choices
    photosynthesis and respiration
    evaporation and condensation
    transcription and translation
    diffusion and transpiration
  • Question 9
    30 seconds
    Q. Which of the following statements is true about natural systems? 
    answer choices
    Consumers form the bottom levels of both the energy pyramid and the biomass pyramid.
    Producers are at the bottom level of both the energy pyramid and the biomass pyramid.
    Producers are at the bottom of the energy pyramid, but at the top of the biomass pyramid.
    Producers are at the bottom of the energy pyramid, but at the top of the biomass pyramid.
  • Question 10
    30 seconds
    Q. Jill made the table below during her research on aquatic zones and living organisms.  Based on Jill’s observations, which conclusion could you draw?
    answer choices
    Organisms in the intertidal zone must be able to withstand very cold water.
    There are no producers in the benthic zone that rely on photosynthesis
    There are no producers in the benthic zone that rely on photosynthesis
    The warm water and abundant sunlight in the nertic zone limits the plankton population.
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