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  • The Friends of Nature youth club has been studying a local greenbelt area for several years. The plants and land shapes in the area have changed very little, except that a very strong wind about a year ago blew down nearly all the large dead trees. Some of the other things the club has learned are shown in the table. The club has decided to investigate the population changes shown in the table. The club could well predict that the change in the duck population might be due to reduction in

    habitat.
    number of squirrels.
    trees.
    predators.


  • The Friends of Nature youth club has been studying a local greenbelt area for several years. The plants and land shapes in the area have changed very little, except that a very strong wind about a year ago blew down nearly all the large dead trees. Some of the other things the club has learned are shown in the table. The club has decided to investigate the population changes shown in the table. To explain the decline in the squirrel population, they should first investigate

    changes in the fox population.
    dwindling food supply.
    the increase in the duck population.
    loss of a safe nesting area.


  • The Friends of Nature youth club has been studying a local greenbelt area for several years. The plants and land shapes in the area have changed very little, except that a very strong wind about a year ago blew down nearly all the large dead trees. Some of the other things the club has learned are shown in the table. The club has decided to investigate the population changes shown in the table. The club could well predict that the change in the duck population might be due to reduction in

    habitat.
    number of squirrels.
    trees.
    predators.


  • The Friends of Nature youth club has been studying a local greenbelt area for several years. The plants and land shapes in the area have changed very little, except that a very strong wind about a year ago blew down nearly all the large dead trees. Some of the other things the club has learned are shown in the table. The club has decided to investigate the population changes shown in the table. To explain the decline in the squirrel population, they should first investigate

    changes in the fox population.
    dwindling food supply.
    increase in the duck population.
    loss of a safe nesting area.


  • When you hook up a battery to a complete circuit, what flows through the wires from one pole of the battery to the other?

    Heat
    Electricity
    Light
    Sound.


  • A survey of a small coastal valley in California finds only Douglas fir, madrone, and coast redwood. The soil moisture availability in this valley is most likely to be

    0 – 20%.
    20 – 40%.
    40 – 80%.
    60 – 80%.


    0 comments
    created by State of Ohio


  • An ecologist observes that an area in California has experienced an increase in average soil moisture content. The area was once dominated by incense cedar but is now home to a greater variety of trees. Which types of trees would the ecologist most likely observe in this area if the soil moisture content has risen to 30%?

    madrone and California bay
    Douglas fir and madrone
    incense cedar and big-leaf maple
    coast redwood and big-leaf maple


    0 comments
    created by State of Ohio


  • A scientist’s paper is rejected by a journal because the paper did not reveal key details about the experiment she performed to get her results. What ethical argument could the editor give for this rejection?

    Sample collection had been done by a graduate student.
    The scientist’s findings were similar to results reported for other species.
    The scientist had repeated her experiment several times with identical results.
    Other scientists would not be able to verify her findings without more information.


    0 comments
    created by State of Ohio


  • A survey of a small coastal valley in California finds only Douglas fir, madrone, and coast redwood. The soil moisture availability in this valley is most likely to be

    0 – 20%.
    20 – 40%.
    40 – 80%.
    60 – 80%.


    0 comments
    created by State of Ohio


  • An ecologist observes that an area in California has experienced an increase in average soil moisture content. The area was once dominated by incense cedar but is now home to a greater variety of trees. Which types of trees would the ecologist most likely observe in this area if the soil moisture content has risen to 30%?

    madrone and California bay
    Douglas fir and madrone
    incense cedar and big-leaf maple
    coast redwood and big-leaf maple


    0 comments
    created by State of Ohio


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