5. The similarity in homologous structures between
different species is evidence that they
a. share a common ancestor.
b. are members of the same genus.
c. use the similar structures in the same way.
d. evolved from each other.



Answer :

Final answer:

Homologous structures indicate a common ancestor among different species through shared anatomical traits.


Explanation:

Homologous structures are similar anatomical structures that appear in different species and suggest a common ancestor.

These structures, such as the forelimbs of mammals with the same basic pattern despite different functions like wings for bats, fins for whales, and legs for horses, provide evidence of shared ancestry.

By analyzing homologies through comparative anatomy, embryos, and DNA, scientists can gain insights into evolutionary relationships among organisms.


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