_:b663277078 "Biological homology that is characterized by changes, over evolutionary time, in the rate or timing of developmental events of homologous structures." . _:b663277078 . _:b663277078 . _:b663277078 . _:b663277078 . _:b663277078 . _:b663277078 . _:b663277078 "ISBN:978-0674639416" .