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Difficulty: MediumEvolution and Adaptation

Analogous structures, such as the wings of birds and the wings of insects, evolved independently through convergent evolution to perform similar functions rather than being inherited from a shared winged ancestor.

Answer: Answer

Answer

True. Analogous structures are the result of convergent evolution, where unrelated species independently evolve similar functional traits in response to similar environmental demands.
The statement is accurate because analogous structures evolve independently when unrelated species encounter similar selective pressures, producing functionally comparable adaptations such as flight without descending from a common winged ancestor.

Step-by-Step Solution

1
Distinguish between analogous and homologous structures in evolutionary biology.
Analogous structures serve similar biological functions but evolved independently without a shared ancestral trait, whereas homologous structures share an anatomical origin from a common ancestor.
Understanding the core definition of analogous versus homologous traits is required to evaluate anatomical comparisons.
2
Examine the evolutionary history and anatomy of bird and insect wings.
Birds and insects do not share a winged common ancestor; bird wings consist of internal bones and feathers, while insect wings are thin cuticle membranes.
Establishing that these structures developed along separate lineages verifies that they represent convergent evolution rather than inherited ancestry.
3
Determine the truth value of the statement based on the anatomical and evolutionary evidence.
The statement correctly describes the nature of analogous structures and convergent evolution, making the statement True.
Synthesizing the definitions with the biological example confirms the accuracy of the prompt.

Key Concept

Analogous Structures and Convergent Evolution
Estimated Time:45s
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Topics

Evolution and Adaptation

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