Skeletal structures are common between two animals of different species. These structures probably exist because both species are D. Related to a common ancestor.
These structures are called Homologous Structures.
Homologous structures
- These are structures which are similar in related organisms.
- these are found in organisms with common ancestry
- Example: a chimpanzee and human arm are homologous structures since they have a common ancestor. Another example, a bird's wing, dolphin's flipper, a cat's leg, and human arm
- these are structures with similar anatomical features within different animals
- supports the idea that they descend from a common ancestor and is an evidence of an evolution
- these homology may refer to form but not in function
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