4.Describe the three types of selection: directional, stablizing and disruptive.

Directional selection is a type of selection that removes individuals from one end of a phenotype distribution and thus causes a shift in the distribution. Selection that changes the frequency of an allele in a constant direction, either toward or away from fixation for that allele. A stabilizing selection is a type of selection that removes individuals from both ends of a phenotype distribution thus maintaining the same distribution mean. Lastly, disruptive type of selection that removes individuals from the center of a phenotype distribution and thus causes the distribution to become bimodal. Examples for all these are rabbits.

3.Explain what microevolution is? What are three ways that variation occurs?

Microevolution is a change in gene frequency within a population. This change is due to four different processes. Mutation, Natural Selection, gene flow and genetic drift. Microevolution is when a small scale changes in gene in a population over a few generations. One of the examples is when insects have evolved resistance to pesticides. Microevolution only occurs when there's a level of animals not only individuals.

2.Why is Fossil hard to Interpret?

Fossil is hard to interpret, because fossils have to at least ten thousands years old. Most are also sticked to rocks, so its hard to find the original form. Fossils are also found deep under ground, and mostly in Africa. Fossils also have to be alive back then to be able to be a fossil. Fossils are the bones of an animal that form after ten thousand years. So it is also hard to find the complete fossil.

1.Why is evolution a theory and not a law?

The reason why evolution is a theory and not a law is because, a law cant be changed or replaced. Theory is something thats been created by all the scientist's experiments result. But it could be changed or replaced throughout the time by new research and technology. World is changing so is science theory.