Evolution Review #2

What type of selection is depicted in the picture? 

• stabilizing 
• directional 
• disruptive 
• the answer is not here

_{What type of selection?}

• Directional 
• Stabilizing
• Disruptive

Robins typically lay fours eggs. If more then four eggs are produced then the baby chicks are malnourished while smaller egg numbers result in no viable (able to live) baby chicks. This is an example of

• stabalizing
• disruptive
• direction
• none of the above

If finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?

• Directional selection
• Disruptive selection 
• Stabilizing selection

What type of natural selection is this?

• Disruptive Selection

• Directional Selection

• Stabilizing Selection

• Natural Selection

The example of the peppered (brown) moths living near English industrial cities demonstrates that

• A change in an environment can result in the evolution of species living there
• Evolution occurs so slowly that is it not possible to determine that it has happened in less than a million years
• The environment near these cities has always favored dark colored moths

Modern whales developed their traits through natural selection.  What occurs during the process of natural selection?

• Organisms choose mates from other species to create new species
• Breeders selectively cross organisms with desired traits
• Only the fittest organisms can survive and reproduce
• Organisms remain exactly the same over time.

Which of the following is an example of a behavioral adaptation?

• Predators hunting at night to catch sleeping prey.

• Predators that have the ability to change their coloration with the seasons, in order to blend in to their surroundings.

• Predators using their claws to dig for roots, since their are no more prey animals in their environment.

• Predators with longer snouts using those snouts to better reach food sources that are in small crevasse.

Which of the five fingers of evolution is greatly impacted by changes in the gene pool because the population is small?

• gene flow

• natural selection

• genetic drift

• mutations

• nonrandom mating

Which of the following five fingers of evolution results in an increase of genetic variation and could end up being harmful, beneficial, or neutral?

• gene flow

• genetic drift

• mutations

• natural selection

• nonrandom mating