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RSB [31]
3 years ago
6

While visiting the Galapagos Islands in 1835, Charles Darwin collected over thirteen different species of a type of bird called

a finch. He later observed that the birds were similar in many ways but often differed in the size and shape of their beaks. Which statement BEST summarizes Darwin's explanation for the different beaks he observed in these finch species?
A) The beaks changed so they could eat different foods.
B) The beaks of each finch species were the result of natural selection.
C) The size and shape of the beaks differed because of the effects of artificial selection.
D) The size and shape of the beaks differed because of different climates found on the islands.
Biology
2 answers:
Vaselesa [24]3 years ago
4 0

Answer:

b

Explanation:

Goryan [66]3 years ago
3 0
B)

Explanation: The birds have to adapt to the different environments, so that means that their beaks - as well as other body features will differ, based on what type of environment the bird lives in and how it survives
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With an experimental group, you are changing something about the subject before putting it in the conditions it will need to respond to. 

I don't entirely understand, but I know the control group is constant, unchanging. It sort of helps with distinguishing things. I have examples of experiments if that will help you understand what a control group is to answer the question. I also have a The Death Cure example if you have seen or read the book. I hope you do not fail this assignment, but even if I did not answer with an answer you were looking for, it could have helped you answer the question on your own. 

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