The remaining animals, the great majority—comprising some 29 phyla and about one million species—form the Bilateria clade, that have a bilaterally symmetric body plan. The Bilateria are triploblastic, with 3 perfectly-produced germ layers, and their tissues variety unique organs. The digestive chamber has two openings, a mouth and an anus, https://thesocialcircles.com/story6007266/5-tips-about-budget-pet-supplies-you-can-use-today