Analogous Structures Worksheet - Grade 11 Biology
Explore analogous structures in biology, their evolutionary significance, and how they differ from homologous structures. This worksheet covers examples and concepts relevant to Grade 11 Evolution.
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Standards
Analogous Structures: Convergent Evolution
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Read each question carefully and provide thoughtful answers based on your understanding of analogous structures and convergent evolution.
1. Which of the following best defines analogous structures?
Structures with similar embryonic origin but different functions.
Structures with different embryonic origin but similar functions.
Structures that are vestigial and have lost their original function.
Structures found in organisms with a recent common ancestor.
2. The wings of a bat and the wings of an insect are considered analogous structures because:
They share a common skeletal structure.
They evolved from a common ancestor with wings.
They serve the same function (flight) but evolved independently.
Their internal structures are identical.
1. Analogous structures are a result of evolution, where different species independently evolve similar traits.
2. The streamlined body shapes of sharks and dolphins are an example of structures.
3. Unlike analogous structures, homologous structures share a common origin.
1. Analogous structures indicate a close evolutionary relationship between organisms.
True
False
2. The presence of analogous structures suggests that organisms adapted to similar environmental pressures.
True
False
1. Explain the difference between analogous and homologous structures, providing an example for each.
2. Describe how convergent evolution leads to the development of analogous structures.