I would go to technology resource first because technology is everywhere in your home, libraries, etc. You can find out what bees do in trees by researching your answer on a search engine and going on trusted websites.
It will be A HIGH PRESSURE SYSTEM
The correct answer is: If generation 3 had flock distributions similar to those shown in the graph below.
After the change in food, the beak phenotype changes in order to adapt. So, if fruit is removed, the phenotype of birds’ beaks should change according to the change in environment. The graph below shows that there is no change, so it wouldn’t support the hypothesis that food changes beak types.