Multiple Choice
Which of the following is required for natural selection to occur in a population?
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1. Introduction to Biology
Natural Selection and Evolution
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Which trait helped each species of finch survive in its specific environment according to Darwin's observations in the Galápagos Islands?
A
Wing length
B
Beak shape and size
C
Feather color
D
Tail pattern
Verified step by step guidance1
Understand the context: Charles Darwin observed finches on the Galápagos Islands and noted that different species had different traits that helped them survive in their specific environments.
Identify the key trait: Darwin's observations highlighted that the beak shape and size of finches were crucial for their survival, as these traits were adapted to the specific food sources available in their environment.
Consider the role of natural selection: The finches with beak shapes and sizes best suited to their environment were more likely to survive and reproduce, passing these advantageous traits to their offspring.
Analyze the options: Wing length, feather color, and tail pattern are not directly related to the finches' ability to access food resources, which is why beak shape and size are the traits that helped them survive.
Conclude with Darwin's theory: This example of finches demonstrates the principle of natural selection, where traits that enhance survival in a specific environment are more likely to be passed on to future generations.
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