What is the difference between homologous and analogous structures?
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What is the difference between homologous and analogous structures?
Homologous structures are those that have a similar evolutionary origin but may serve different functions in different species. For example, the forelimbs of mammals (like humans, whales, and bats) are homologous because they share a common ancestor.
Conversely, analogous structures have similar functions but do not share a common evolutionary origin. An example would be the wings of birds and insects; they both serve the purpose of flight but evolved independently.
In summary, homologous structures indicate a shared ancestry, while analogous structures highlight similarities in function due to convergence rather than shared lineage. If you have more questions or need further explanation, feel free to ask!