Flatworms also have a feature that the sponges and cnidarians do not, a middle layer of actual organized cells. Flatworms have three cell layers: an ectoderm, an outer covering like the other groups have; an endoderm, a lining of the digestive spaces somewhat like a cnidarians; and a mesoderm between the other two. With actual tissues protected like this, another evolutionary explosion of features happened.
Buying a home in Fredericktown, PA. Fredericktown is a city in Washington County, Pennsylvania. Last year, 2 properties were sold for a median price of $49,000. Average price for a home in Fredericktown, PA is $49,000. The average property tax is $1,186 per year.
Fredericksburg is home to several major commercial centers including Central Park (as of 2004, the second-largest mall on the East Coast) and Spotsylvania Towne Centre, located in Spotsylvania County adjacent to the city line.ocated on the Rappahannock River near the head of navigation at the fall line, Fredericksburg developed as the frontier of colonial Virginia shifted west out of the coastal plain. The land on which the city was founded was part of a tract patented in 1671.