Science

6th -

8thgrade

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Organisms Interactions in Ecosystems #2

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14 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
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    The graph shows the populations for two animals that share a habitat. Foxes are mammals that hunt for food. Grouse are birds, a common prey animal of foxes. According to the data, in which year did the population of foxes show a decrease that is most likely the result of (because of) a decrease in the availability of grouse?

    2003

    2005

    2008

    2009

  • 2. Multiple Choice
    1 minute
    1 pt
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    An increase in the population of an organism (living thing) could happen because of ??

    A series of severe weather events in the habitat

    A decrease in necessary resources available

    An expansion (increase) of living space

    An increase in animals that prey on the organism

  • 3. Multiple Choice
    2 minutes
    1 pt
    Image

    What data would be most helpful to support the claim that the population of a certain plant depends on the rainfall of the habitat?

    The average amount of water absorbed by a plant’s roots

    The amount of water the soil holds onto in the area where the plants live.

    Rainfall amounts and numbers of these plants in a certain habitat measured over several years.

    The heights and number of leaves produced by these plants under different moisture conditions

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