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Midterm Assessment Part 1

Quiz by Amanda Wood

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9 questions
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  • Q1
    A teacher decides to have her students plant trees to help restore the habitat of a local forest.  It is most important for students to ―
    remove all decaying organic material to prevent contamination of the soil
    remove all other plants in the area to give the trees a chance to grow
    plant the same native trees that were previously in the forest to avoid disruption of the ecosystem
    release native animals into the forest simultaneously to restore the entire ecosystem
    30s
  • Q2
    Which environmental impact of small personal watercraft would have the most long-term damaging effect on the environment?
    The effect on native species from the introduction of invasive zebra mussels that were transferred during a single day’s use of a small personal watercraft.
    The effect on water quality from the use of sunscreen used during a single day’s use of a small personal watercraft.
    The effect on water quality from the from fuel used during a single day’s use of a small personal watercraft.
    The effect on waterfront erosion from docking during a single day’s use of a small personal watercraft.
    30s
  • Q3
    What role might the newly established eucalyptus forest play in this ecosystem?
    Erosion control
    Food source
    Increased biodiversity
    Shelter
    30s
  • Q4
    How do regional changes in the environment cause a widespread change in weather like the one described in the excerpt from Nature News above?
    Disruptions to the nitrogen cycle cause nutrient runoff to increase, causing algae bloom and decreased levels of oxygen in the water.
    Sulfur dioxide emissions from burning coal create acid precipitation which changes weather patterns.
    Disruptions to the water cycle are caused by excessive water use which limits evaporation. 
    Disruptions to the carbon cycle from burning fossil fuels and deforestation increase atmospheric CO2, causing ocean temperatures to rise due to the greenhouse effect.
    30s
  • Q5
    Mass extermination efforts in the first half of the 20th century decimated the gray wolf population.  Which of the following was not an effect on the other existing populations in the Western United States?
    Fish populations in the streams increased.
    Willows and other riparian plants were wiped out.
    Insect populations, such as mosquitoes, increased.
    The elk populations grew exponentially.
    30s
  • Q6
    A student attempting to identify a conifer sample notices that it contains needle-like leaves. What should the next step be in identifying the organism?
    See if needles are attached singly or in bundles/clusters.
    Count the number of needles in the bundle.
    Determine the color of the needles.
    Determine the length of the needles.
    30s
  • Q7
    Honeybees feed on and pollinate clover and flowering plants native to the prairie grassland biomes of Texas.  Which of the following organisms provides a similar niche in the Sonoran Desert ecosystem of Arizona?
    Secondary Consumer – The black kingsnake is a constrictor that feeds on small rodents.
    Tertiary Consumer – The spotted owl feeds on small birds.
    Producer – The ironwood tree provides shelter and shade for many desert animals.
    Primary Consumer – Long-nosed bats feed on saguaro cactus blooms.
    30s
  • Q8
    Tertiary Consumer – The spotted owl feeds on small birds.
    Issuing fishing regulations and licenses based on local conditions and fish population dynamics
    Using a dragnet to gather large amounts of fish efficiently and minimize the time that a boat is at sea
    Using a small personal watercraft instead of a large boat to enjoy a day on the lake
    Visiting countries on different continents to observe their endangered species and learn about local efforts to preserve them
    30s
  • Q9
    The prickly pear cactus was originally imported into eastern Australia in the 18th century for gardens and was later used as natural agricultural fencing.  The cactus quickly became widespread, eventually covering 101,000 sq mi (260,000 km2) of farming land in a 20 ft high jungle of cactus.  Farmers were forced to leave their homes as their land was overgrown.  In 1925, a moth from South America whose larvae eat the cacti was introduced.  The moths eventually wiped out the cactus population, returning the land to its normal balance. Which of the following statements is not a possible consequence of introducing a foreign moth?
    The moth could have failed to control the prickly pear cactus in this ecosystem.
    The moth could have brought diseases from South America to other insect populations.
    The moth could have mutated the prickly pear cactus.
    The moth could have further altered the food chain by eating native plant species besides the prickly pear.
    30s

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