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HomeHomework HelpbiologyAnalogous Structures

Analogous Structures

Analogous structures are anatomical features in different species that serve similar functions but do not share a common evolutionary origin. These structures arise through convergent evolution, where unrelated organisms adapt to similar environmental challenges.

intermediate
2 hours
Biology
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Overview

Analogous structures are fascinating examples of how different species can evolve similar traits to adapt to similar environments, despite not sharing a common ancestor. This phenomenon, known as convergent evolution, highlights the power of natural selection in shaping the diversity of life on Eart...

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Key Terms

Analogous Structures
Body parts in different species that have similar functions but evolved independently.

Example: Wings of bats and birds.

Homologous Structures
Body parts that share a common ancestry but may serve different functions.

Example: Forelimbs of humans and whales.

Convergent Evolution
The process where unrelated species evolve similar traits.

Example: Dolphins and sharks both have streamlined bodies.

Comparative Anatomy
The study of similarities and differences in the anatomy of different species.

Example: Comparing the skeletal structures of various animals.

Evolution
The process through which species change over time through natural selection.

Example: Darwin's theory of natural selection.

Biodiversity
The variety of life in the world or a particular habitat.

Example: The Amazon rainforest has high biodiversity.

Related Topics

Homologous Structures
Study of body parts that share a common ancestry but may serve different functions.
intermediate
Natural Selection
Understanding how species evolve through the process of natural selection.
intermediate
Evolutionary Biology
The study of the origins and changes in the diversity of life over time.
advanced

Key Concepts

EvolutionConvergent EvolutionFunction vs. StructureComparative Anatomy