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re the same set of bones: the ulna, the radius, and the humerus. these same bones are also seen in fossils of the extinct animal eusthenopteron, which demonstrates common ancestry among these four groups of animals. hence, these forelimbs are an example of:

Sagot :

The presence of the same set of bones in the groups of animals along with the extinct animal Eusthenopteron, demonstrating a common ancestry among them is an example of: Homology.

Ancestry can be defined as the roots from where an individual originates. The organism that gave rise to further generation is called the ancestor. Ancestry is an important field to know about the evolution of organisms from the ancient to the recent times.

Homology is the phenomenon of presence of similar kind of structures in different types of organisms. These structures may perform different functions in different organisms. Such structures are called homologous structures. This happens due to organisms having common ancestors.

The question is incomplete, the complete question is:

Frogs, birds, rabbits, and lizards all have different forelimbs, which makes sense when you consider their different lifestyles Interestingly, all of their forelimbs share the same set of bones the ulna, the radius and the humerus. These  same bones are also seen in fossils of the extinct animal eusthenopteron, which demonstrates common ancestry among these four groups of animals. hence, these forelimbs are an example of:

  1. Homology
  2. Homilies
  3. Similes
  4. Analogies

To know more about homology, here

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