What defining characteristic justifies the White-tailed Eagle's placement in the Phylum Chordata?
Answer
Possessing a notochord or vertebral column
The placement of *Haliaeetus albicilla* within the Phylum Chordata is based on a fundamental criterion shared by all members of this phylum: the presence of a notochord at some stage of development, which typically develops into a vertebral column or spine in higher vertebrates. This defining feature contrasts with the characteristics used for classification at lower taxonomic ranks, such as having feathers (Class Aves) or being multicellular and heterotrophic (Kingdom Animalia).
Related Questions
What does the specific epithet *albicilla* in *Haliaeetus albicilla* signify regarding the bird's appearance?Which Order classification confirms the White-tailed Eagle as a diurnal bird of prey, distinguishing it from owls?The Family Accipitridae groups *Haliaeetus albicilla* with which broad categories of raptors?What key ecological specialization is common among members of the genus *Haliaeetus* that links the White-tailed Eagle to others like the Bald Eagle?What common name is used for the White-tailed Eagle, specifically noted in the context of Ireland?What defining characteristic justifies the White-tailed Eagle's placement in the Phylum Chordata?What is the approximate English translation for the genus name *Haliaeetus*?Which subspecies designation is identified as representing the populations found across much of the European range of the eagle?What primary benefit does the universal standard of the binomial name *Haliaeetus albicilla* provide for global conservation efforts?Within the raptorial Order Accipitriformes, what physical features are highlighted as essential traits shared by this group?