Question

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…

Answer 1

Answer: The hypothesis can be completed as-

If the type of food available changes, then the frequency of beak also changes.

Explanation-

Natural selection is a theory of evolution that was given by Charle's Darwin. According to this theory, organisms that are capable of adapting themselves ( that is having beneficial traits, which enhance their survival) in the changing environmental conditions survive and increase their number by means of reproduction.

According to the information given in this question, the type of food available is changing, which will result in the change in the frequency of bird beaks inhabiting that area. This would indicate their adaptation so as to survive under the changed food type, otherwise they will be unable to consume the food resources and will die out.

Answer 2

If the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time. hope this helps :)