At MinuteClinic, vaccinations for children as young as 18 months (5 years in CT) through seniors are administered by a nurse practitioner or physician assistant.** No appointment necessary. Flu is more dangerous than the common cold for children. Flu (Influenza) vaccine for children available at MinuteClinic. Patients 18 months and older in most states, 24 months and older in KY, 5 years and older in CT. About the Flu
Segmented worms are bilaterally symmetrical. Their body consists of a head region, a tail region and a middle region of numerous repeated segments. Each segment is separate from the others by a structure called a septa.
The phylum Echinodermata, which includes starfish, sea urchins and sand dollars, is unique among animals in having bilateral symmetry at the larval stage, but fivefold symmetry (pentamerism, a special type of radial symmetry) as adults.owever, in the Cnidaria, different symmetries exist, and bilateral symmetry is not necessarily aligned with the direction of locomotion, so another mechanism such as internal transport may be needed to explain the origin of bilateral symmetry in animals.