The user can vary the strength of the selection pressure, a predator, pathogen, or pollution for example, which is how change in the environment is simulated. Mutation rates can also be varied. The interaction of these two variables gives rise to adaptations, thus evolution. However, the same two variables also explain extinctions when random mutations produce traits which decrease, rather than increase fitness and/or when environmental change is so severe, a large proportion of a species is killed off in a few generations, not leaving enough individuals to repopulate before other species' outcompete the now rare species.


    Education Levels:

    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 4
    • Grade 5
    • Grade 6
    • Grade 7
    • Grade 8
    • Grade 9
    • Grade 10
    • Grade 11
    • Grade 12


    Grade 2,Grade 3,Grade 1,Genetics,NSDL,Grade 4,Grade 5,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-012,Ecology, Forestry and Agriculture,Kindergarten,Life science,Grade 6,Early Elementary,Upper Elementary,environment,Life Science,Ecosystems,Informal Education,Evolution,Middle School,Adaptations,oai:nsdl.org:2200/20120111184527130T,Elementary School,Natural selection,Mutations,Vocational/Professional Development Education,Geoscience



    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike


    This resource has not yet been aligned.
    Curriki Rating
    'NR' - This resource has not been rated
    'NR' - This resource has not been rated

    This resource has not yet been reviewed.

    Not Rated Yet.

    Non-profit Tax ID # 203478467