Natural Selection Investigation
Directions: Develop a prediction regarding how you expect bunnies with a certain trait
(e.g. tail/teeth) will survive in a certain environment (e.g. arctic/equator) with certain
biotic pressures (e.g. wolverines/food). Note: You will use the same environment and
biotic pressure, and trait throughout and change only the trait variation (e.g. long vs short
tail). Use the Natural Selection Phet to test your ideas. Record your hypothesis, data, and
conclusions below.
Predict and Explain:
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Observe: Use the data table below to record your observations. Be sure to record the
traits you are investigating at the top of columns 2 and 3.
Environment selected: _________________
Biotic Pressure selected: _______________
Trait selected:________________
Trait variation 1:
Trait variation 2:
Time
# organisms
# organisms
Explain: Examine the data and draw a conclusion regarding what happened to the
number of bunnies with each trait over time and why you think this occurred.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________