WorksheetsPhET Natural Selection
Total questions: 10
Worksheet time: 8mins
In the PhET simulation of natural selection, the species that was evolving was
wolves
rabbits
plants
seasons
Genetic variations could be created in what rabbit traits? (select all that apply)
shape of ears
fur color
ability to hop
length of teeth
The variables in the environment that could be manipulated were (select all)
season (color of ground)
amount of rain
predators
type of plant food
Predict what will happen to the rabbit population in this environment.
The rabbits will become extinct.
Rabbits with brown fur will survive and reproduce more than rabbits with white fur.
Rabbits with white fur will survive and reproduce more than rabbits with brown fur.
Rabbits with big teeth will survive and reproduce more than rabbits with small teeth.
What is the selecting factor in the environment?
The type of food
The amount of food
The predator (wolves)
What is the survival advantage of having brown fur?
In this picture, the selecting factor in the environment is
fur color
predator
tough food
long teeth
In this picture, the genetic variation in the rabbit population that has a survival advantage is
fur color
predator
tough food
long teeth
In the simulation, which variation had no advantage but was a random mutation
fur color (brown or white)
ear type (straight or floppy)
teeth (long or short)
In this scenario, the rabbit population will evolve by
increasing the percentage that have white fur ONLY
increasing the percentage that have long teeth ONLY
increasing the percentage that have white fur and long teeth
increasing the percentage that have white fur, long teeth and floppy ears
