Homologous structures are structures that are similar in shape and have similar uses. Species with homologous structures share common ancestry.
Vestigial Structures
Vestigial structures are structures that are smaller and have less important uses such as the hind limbs on a whale or the appendix on a person. the fact that these structures exist suggest that animals with these structures have an ancestor with a species that used these structures for more important uses.
Homologous Structures
Homologous structures are structures that are similar in shape and have similar uses. Species with homologous structures share common ancestry.
Vestigial Structures
Vestigial structures are structures that are smaller and have less important uses such as the hind limbs on a whale or the appendix on a person. the fact that these structures exist suggest that animals with these structures have an ancestor with a species that used these structures for more important uses.