Explain the concept of natural selection using your moths as an example.

Does natural selection always result in evolution?  In your answer, be sure to define natural selection and evolution.  If you answer yes, explain why this is the case.  If you answer no, explain why and describe a condition under which you can have natural selection with no resultant evolution.

Explain why mutations are necessary for natural selection to produce adaptations.

Staphylococcus aureus (staph) is a type of bacteria found on people's skin. These bacteria, along with most other types of bacteria, are usually harmless. They can occasionally cause serious infections that can lead to sepsis or death. Methicillin-resistant Staphylococcus aureus (MRSA) is difficult to treat because of resistance to some antibiotics. Use your knowledge of natural selection to explain how selection for methicillin-resistance in Staphylococcus aureus (MRSA) occurs. Focus on explaining the specifics of how this happens by talking about the variation that has to be present, the characteristics of that variation, impacts on fitness and success of the next generation. Your answer will not require any additional research and will only be a short paragraph based on what you think must be going on here based on other examples of natural selection