Respuesta :
Answer:Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment
Explanation:
Different sizes of beaks demonstrates natural selection occurred in Darwin’s finches.
How natural selection occurred in Darwin’s finches?
The Galapagos finches provides eviendence to Darwin which solidify his idea of natural selection. The Darwin's Finches' beaks were selected for over generations and after few years they make new species that having different sizes of beak.
So we can conclude that different sizes of beaks demonstrates natural selection occurred in Darwin’s finches.
Learn more about natural selection here: https://brainly.com/question/23929271