Multiple Choice
Which statement best describes a keystone species?
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1. Introduction to Biology
Natural Selection and Evolution
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Which scenario is an example of a functional adaptation?
A
A snowshoe hare has white fur in winter for camouflage.
B
A woodpecker has a long, sharp beak for drilling into wood.
C
A chameleon changes its skin color to blend with its surroundings.
D
A desert fox has large ears that help dissipate heat.
Verified step by step guidance1
Step 1: Understand the concept of functional adaptation. Functional adaptations are traits that enhance the survival or reproduction of an organism by improving its physiological or biochemical functions in response to environmental challenges.
Step 2: Analyze the examples provided in the problem. Each scenario describes a trait that helps the organism survive in its environment. Determine which trait is specifically related to a physiological function.
Step 3: Evaluate the snowshoe hare's white fur. This is a structural adaptation for camouflage, not a functional adaptation, as it does not involve a physiological process.
Step 4: Evaluate the woodpecker's long, sharp beak. This is also a structural adaptation for feeding, not a functional adaptation, as it is a physical trait rather than a physiological function.
Step 5: Evaluate the desert fox's large ears. This trait helps dissipate heat, which is a physiological function related to thermoregulation. Therefore, this is an example of a functional adaptation.
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