Science

9th

grade

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Dichotomous Keys and Classification

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18 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    What is the purpose of a dichotomous key?
    to find a common ancestor
    to show the evolution of organisms
    to show relationships between organisms
    to identify organisms
  • 2. Multiple Choice
    3 minutes
    1 pt
    Image
    A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?
    Juniper
    Pine
    Spruce
    Fir
  • 3. Multiple Choice
    30 seconds
    1 pt
    What step do we always start with when using dichotomous keys?
    1
    2
    3
    4
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