1. Turn the seastar over to its ventral or oral surface (underside). 2. Locate the mouth in the center of the central disc. Find the ring of oral spines surrounding the mouth. 3. Find the groove that extends down the underside of each arm. This is called the ambulacral groove.. Locate the central disc in the center of the seastar. Locate the small, round hard plate called the madreporite on top of the central disc. Water enters through this into the water vascular system.
Lyon or (more archaically) Lyons (UK /liËËÉn/ or /ËliËÉn/; French pronunciation: [ljÉÌ], locally: [lijÉÌ]; Arpitan: Liyon [ÊjÉÌ]) is a city in east-central France, in the Auvergne-RhÃ´ne-Alpes region, about 470 km (292 mi) from Paris and 320 km (199 mi) from Marseille. Inhabitants of the city are called Lyonnais.
Paris is the capital city of France. It is situated on the River Seine, in northern France, at the heart of the Ãle-Ã®le-De france (Region region). rÃ©gion parisienneapital of the Ãle-Ã®le-De france. Region rÃ©gion as part of a-1961 nation wide administrative effort to consolidate, Regional economies paris as a departement dÃ©partement became the capital of the new Region rÃ©gion Of, the district Ãle-paris-Renamed the ile Ã®le. de france region rÃ©gion in 1976