Which of the following statements best describes the response of finches to drought on the Galapagos Islands?

During drought, individual finches saw that large, hard seeds were the only available food. To crack these harder seeds, individual finches grew their beaks larger, resulting in an increased average beak depth.
During drought, finches struggled to open harder seeds. All the scraping and pecking wore down their beaks, resulting in a reduced average beak depth.
During drought, only finches with larger-than-average beaks were able to crack the hard seeds that were available. These finches survived while smaller-beaked finches died, resulting in an increased average beak depth in the population.

B?

EH, thanks anyways ill go with c.. and therewasnt an article... directions said answere these question about finches and a hard seed

I haven't read your article, but I disagree with your answer.

Right.

thx

Correct Answer is C). During drought, only finches with larger-than-average beaks were able to crack the hard seeds that were available. These finches survived while smaller-beaked finches died, resulting in an increased average beak depth in the population.

Explanation:
Normally, reducing food supplies would favor animals with smaller bodies because they don't need as much food to survive. On the Galapagos Islands, however, only large seeds are available during the drought. Small-beaked finches are not able to access this food supply, so they are more likely to starve. Many of the large-beaked finches are likely to die as well, but some will be able to live on a hard-seed diet. As these finches survive and produce offspring, the average beak depth increases.

Yes, statement B is the most accurate description of the response of finches to drought on the Galapagos Islands.

To determine the answer, you can analyze each statement and assess its validity based on the principles of natural selection. In response to drought, finches experienced a scarcity of food, with only hard seeds being available. The ability to crack these harder seeds required longer and stronger beaks.

Statement A suggests that all individual finches grew their beaks larger, resulting in an increased average beak depth. However, this statement does not consider natural selection and implies that every finch increased their beak size, which is not likely to happen uniformly.

In statement B, it is stated that finches struggled to open harder seeds, which wore down their beaks and resulted in a reduced average beak depth. This contradicts the principles of natural selection because individuals with reduced beak depth would struggle to survive and reproduce, leading to a decrease in the overall population.

Statement C accurately describes the process of natural selection. During drought, only finches with larger than average beaks were able to crack the hard seeds and survive. Smaller-beaked finches died due to the lack of suitable food, resulting in an increased average beak depth in the population.

Therefore, statement B best describes the response of finches to drought on the Galapagos Islands.

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