Question 1
There are four different forces of evolution. Those four examples are natural selection,
mutation, genetic drift and gene flow. The first force of evolution is natural selection. Natural
selection is defined as, “the process by which some organisms, with features that enable them to
adapt to the environment, preferentially survive and reproduce, thereby increasing the frequency
of those features in the population (Larson 24).” An example of natural selection that is used
often is the finches of the Galapagos Islands studied by Charles Darwin. Throughout the islands
were different species of finches that share a common ancestor. The different species of finches
have specific beak shapes that are specialized to their various feeding habits. Certain beak shapes
were passed on to their offspring that was beneficial to a niche food resource.
The second force of evolution is mutation. A mutation is a random change in a gene or
