The front legs of a frog and the front legs of a
horse are examples of structures that are (1) het-
erotrophic (2) homozygous (3) hermaphroditic
(4) homologous



Answer :

Final answer:

Homologous structures indicate shared ancestry between species.


Explanation:

Homologous structures are anatomical similarities between different species that point to a common evolutionary ancestor. They may not necessarily serve the same function but share a common developmental origin. For example, the forelimbs of a horse and the front legs of a frog are homologous structures because they exhibit similar bone structures despite serving different functions.


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