Multiple Choice
Which of the following is a common objection historically raised against evolutionary theory?
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1. Introduction to Biology
Natural Selection and Evolution
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How does the type of food available in an environment affect the frequency of different bird beak shapes within a population?
A
Birds with beak shapes best suited to the available food are more likely to survive and reproduce, increasing the frequency of those beak types.
B
Birds will change their beak shape during their lifetime to match the available food.
C
All beak shapes will become equally common regardless of food type.
D
The type of food available has no effect on the frequency of different bird beak shapes.
Verified step by step guidance1
Understand the concept of natural selection: Natural selection is a process where individuals with traits better suited to their environment are more likely to survive and reproduce. This leads to an increase in the frequency of those advantageous traits in the population over generations.
Identify the relationship between beak shape and food type: Different beak shapes are adaptations that allow birds to efficiently consume specific types of food. For example, a long, thin beak may be suited for extracting nectar, while a strong, thick beak may be better for cracking seeds.
Analyze the impact of food availability: If a specific type of food becomes more abundant in the environment, birds with beak shapes suited to that food will have a survival and reproductive advantage. Over time, this will increase the frequency of those beak shapes in the population.
Address the incorrect options: Birds do not change their beak shape during their lifetime to match the food (this is a misunderstanding of evolution). Additionally, not all beak shapes will become equally common, as natural selection favors specific traits. Lastly, the type of food available does affect the frequency of beak shapes, as it influences survival and reproduction.
Conclude with the correct answer: The correct explanation is that birds with beak shapes best suited to the available food are more likely to survive and reproduce, increasing the frequency of those beak types in the population over time.
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