Blog #4 Describe the three types of selection: directional, stabilizing and disruptive and give an example of each in your own words

Directional: A process in Natural Selection where a a single phenotype is favored resulting in the allele frequency to shift in a driection continuously.
e.g. The grey hound was breeded for speed and is now one of the fastest types of dog.

Stabilizing:  The type of selection where genetic diversity is slowly decreased on a particular trait value.
e.g. Human birth weight: babies of low weight lose heat more quickly and get ill from infectious disease more easily, whereas babies of large body weight are more difficult to deliver through the pelvis.

Disruption:  changes in population genetics in which extreme values for a trait are favored over intermediate values.
e.g. The color of a rabbits fur helps it blend in to it's environment. BUT if a different color that doesn't camouflage  the rabbit is introduced into the environment, it will be killed because of it's lack of camouflage.  This is where disruption comes into play. The rabbits that are camouflaged will breed with the rabbits without any camouflage thus creating babies that are camouflaged.

Blog#3 What is microevolution and list the ways it occurs.

Microevolution is a change in gene frequency within a population. It can occur through mutation, selection (artificial and natural) and genetic drift.

Blog#2 Why is a fossil record hard to interpret?

Fossil records are hard to interpret because many of them are jumbled together and not intact. If they were intact, it would be easier to figure out which animal the fossil is.

Blog#1 Why is evolution a theory and not a law?

Evolution is a theory and not a law because the theory lacks in evidence and hard, solid proof to prove it is real.