In your own words answer each of the following

In your own words answer each of the following

1.What is evolution? Discuss in at least 50 words.

2.How does natural selection affect the frequency of traits in a population? (50 words)

3.If you recorded the frequency of certain butterfly traits over six generations in a stable habitat. what observations or fluctuations in the number of observed traits occurred? If fluctuations occurred, did the frequency of each trait increase, decrease, or remain the same over the course of six generations? Were these results consistent with your expectations? Explain in 60 to 100 words, thanks