Question

formulate a hypothesis
use what you know about natural selection to fill in the blanks in the hypothesis. it should answer the lab question, \what is the effect of the type of food available on the frequency of different types of bird beaks?\
hypothesis: if the type of food available changes, then...
...because...

Explanation:

Natural selection is the process by which organisms better adapted to their environment tend to survive and reproduce more successfully. In this case, if the food type changes, birds with beak types suitable for the new food will have a survival and reproductive advantage. Their traits (beak types) will be passed on more frequently in the population over time.

Answer:

If the type of food available changes, then the frequency of bird beak types that are best suited to eat the new food type will increase because birds with those beak types will be more successful at getting food, surviving, and reproducing, passing on the genes for those favorable beak types to the next generation.