Do homologous structures have the same function in different organisms?
http://www.biologyjunction.com/taxonomy_notes_bi.htm
yes
Homologous structures are anatomical structures that have a common origin, meaning they are similar in structure across different organisms. However, while homologous structures share a common ancestral origin, they may not necessarily have the same function in different organisms.
To determine whether homologous structures have the same function in different organisms, you need to compare the structures and their respective functions across those organisms. Here’s how you can do that:
1. Identify the homologous structures: Look for anatomical features that have a similar structure in different organisms. For example, the forelimbs of mammals (including humans, bats, whales, and horses) share a common skeletal pattern, indicating homology.
2. Research the functions: Determine the functions of these structures in different organisms by studying their adaptations and behaviors. For example, human forelimbs are primarily used for manipulating objects, whereas bat forelimbs are specialized for flight.
3. Compare the functions: Compare the functions of the homologous structures across different organisms. Determine if they serve the same purpose or have different adaptations towards different functions. In the case of mammalian forelimbs, while the structure is homologous, the functions differ depending on the specific adaptations of the organisms.
In summary, homologous structures may or may not have the same function in different organisms. To determine their functions, you need to compare the structures and their adaptations across different organisms.