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8L3 Ecology

Quiz by Beth Hall

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12 questions
Show answers
  • Q1
    What is the original source of energy in a food web?
  • Q2
    Which of the following describe a population?
    a squirrel eating acorns
    all of the mice living in a barn
    a log providing shelter for beetles, spiders, and snakes
    all of the sunfish, bass, and catfish living in a lake
  • Q3
    How would you locate the tertiary consumer in a food chain?
    count the producer until you reach the tertiary consumer
    start with the decompsers
    follow the arrows
    start with the producer and count up from there
  • Q4
    What would be considered a biotic factor for a frog's habitat?
    the algae where the frog lays its eggs
    the rocks on which the frog suns itself
    the water in which the frog lives
    the air the frog breathes
  • Q5
    What characteristic distinguished a population from higher levels of organization?
    the organisms can breed with each other
    the organisms live in different areas
    the organisms compete with each other for food
    the organisms depend on each other for survival
  • Q6
    Which of the following would help decrease the amount of carbon in the atmosphere?
    the burning of coal and oil
    photosynthesis performed by plants and trees
    human respiration
    evaporation from lakes and rivers
  • Q7
    When honeybees land on dandelion flowers to drink nectar, pollen sticks to their bodies. The pollen is transferred when the honeybees visit another dandelion flower. What type of ecological relationship is this?
  • Q8
    What species can convert nitrogen in the air into a form that plants can use?
  • Q9
    How does the nitrogen cycle differ from the carbon and oxygen cycles?
    most organisms cannot use nitrogen directly from the atmosphere, so it must combine with other elements to form usable nitrogen compounds
    nitrogen never becomes incorporated into living things unlike carbon and oxygen, which are required for the formation of sugar
    organisms use nitrogen to build proteins and other complex molecules unlike carbon and oxygen which are never incorporated into living things
    animals breathe nitrogen directly from the air, so they are not dependent on plants releasing it as a byproduct of photosynthesis
  • Q10
    How are the carbon and oxygen cycles interconnected?
    the carbon dioxide produced during photosynthesis is used during respiration to produce oxygen
    the oxygen produced during photosynthesis becomes a component of water in the atmosphere
    the carbon the the surface of the Earth combines with oxygen in the air to form the water in the ocean
    the oxygen produced during photosynthesis is used during respiration to produce carbon dioxide
  • Q11
    What organism should be added to a food chain if a student is asked to give an example of a mutualistic relationship with plants
    rats, they feed on plants' flowers and decrease the populations of plants
    birds, they feed on the seeds of plants
    bees, they feed on flowers' nectar and in turn pollinate them
    rabbits, they feed exclusively on plants
  • Q12
    Which of the following symbols best represents the relationship between two communalistic organisms?

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