Science

5th

grade

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5.L.2.3 Interactions in Ecosystems

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  • 1. Multiple Choice
    1 minute
    1 pt
    Eelgrass is a major source of food for birds and turtles in an estuary.  What will most likely happen to the bird and turtle populations if people remove the eelgrass to build a bridge?
    The turtle population will increase, but the bird population will decrease
    Both the bird population and the turtle population will increase
    The bird population will increase, but the turtle population will decrease
    Both populations will decrease
  • 2. Multiple Choice
    1 minute
    1 pt

    A chemical intended to kill insects and other organisms that damage crops

    nicotine

    pesticide

    sweet tea

    tar

  • 3. Multiple Choice
    30 seconds
    1 pt
    In a grassland ecosystem, if the population of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem?
    The ecosystem will become overpopulated with snakes
    There will be a decrease in the population of snakes in the ecosystem
    The nutrition of the soil in the ecosystem will decrease
    More types of plants will begin growing in the ecosystem
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