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Energy in the Ecosystem

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  • What does the arrow in a food chain mean?
    "gives energy to"
  • (choose) A unicornfish is a(n)
    omnivore
    carnivore
    producer
    herbivore
  • (choose) jackals and vultures are _____
    detritivores
    saprophytes
    scavengers
  • What kind of organism eats both producers and other consumers?
    omnivore
  • (Choose) What is NOT an example of a primary consumer?
    jackrabbit that eats squirrel
    squirrel that eats acorns
    mouse that eats seeds
    deer that eats grass
  • Name the secondary consumer in this food chain.
    butterfly fish
  • What is the name of this model?
    food web
  • True or False? The third trophic level is represented by secondary consumers.
    True
  • How do the movements of matter and energy differ?
    matter cycles, energy flows
  • (choose) What trophic level is the coral?
    tertiary consumer
    producer
    secondary consumer
    primary consumer
  • What is the name of this model?
    energy pyramid
  • What kind of organism eats producers only?
    herbivore
  • Bacteria and fungi are decomposers called ____________
    saprophytes
  • How many trophic levels are represented on this model?
    5
  • (choose)Beetles and flies are
    saprophytes
    detritivores
    scavengers
  • Name two kinds of decomposers that get energy by EATING dead organisms.
    detritivores, scavengers
  • What do the grey arrows going away from the pyramid indicate?
    energy that is lost as heat
  • What is the name of this model?
    food chain
  • What is the name of the rule this model illustrates?
    the 10% rule
  • (choose) What trophic level is the parrotfish?
    secondary consumer
    primary consumer
    tertiary consumer
    producer
  • True or false? A secondary consumer is a consumer in the fourth position on the food chain.
    False
  • What kind of organisms are found in the third trophic level?
    secondary consumders
  • True or False? Many consumers feed at more than one trophic level.
    True
  • The feeding position in a food chain or food web is called _____________
    the trophic level
  • How does a food chain model energy flow?
    through feeding relationships
  • In an energy pyramid, how much energy is used for daily life processes? How much energy is passed on?
    90% used for life processes and 10% is passed on
  • What does the law of conservation of energy state?
    Energy can not be created or destroyed
  • Name the primary consumer in this food chain.
    zooplankton
  • (choose) bacteria and fungi are _____
    scavengers
    saprophytes
    detritivores
  • Name the quaternary consumer in this food chain.
    shark
  • Name the producer in this model
    phytoplankton
  • What kind of organism gets its energy by eating other organisms?
    consumer
  • Name the producer in this food chain.
    phytoplankton
  • Can an organism be found in more than one trophic level? Explain giving an example from the food web.
    Yes. The unicornfish is a primary consumer when it gets its energy directly from the phytoplankton. Secondary when energy from zooplankton.
  • What kind of organism gets its energy by eating other animals?
    carnivore
  • True or False? The energy pyramid depicts how energy increases from lower to higher trophic levels.
    False
  • What is the primary energy source being shown in this model?
    the sun
  • Name the tertiary consumer in this food chain.
    octopus
  • True or False? Energy is recycled in a food chain.
    False
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