Homologous Structures Worksheet
Explore homologous structures in different species, understanding their anatomical similarities and evolutionary significance.
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Homologous Structures: Exploring Shared Ancestry
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Read each question carefully and provide thoughtful answers based on your understanding of homologous structures and evolutionary biology.
Observe the image below showing the forelimbs of different vertebrates. These are examples of homologous structures.
1. What is a homologous structure? Describe its key characteristics and how it differs from an analogous structure.
2. The presence of homologous structures in different species suggests:
Convergent evolution
Divergent evolution from a common ancestor
Random genetic mutations
Independent development
3. The forelimb of a human, the wing of a bat, and the flipper of a whale are all examples of structures, indicating a shared evolutionary .
4. Homologous structures always perform the same function in different organisms.
True
False
5. Explain how homologous structures provide evidence for the theory of evolution.