Biology assignment due 3/5....

This basic question set is about mutations.   Mutations go hand in hand with the evolutionary process.  Here are your questions:

1. What are three examples of mutations that could be beneficial for an organism?

2. What are three examples of mutations that could be harmful to an organism?

3. What can potentially happen to a species if a mutation fails to be a positive influence in a world that is going through extreme climate change?  Explain your answer. 

Please E Mail these answers to my school address....this is due tomorrow 3/5.