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.
Welcome to Cambria County, Pennsylvania! Cambria County is a fourth class county in the State of Pennsylvania with a population of approximately 143,728 residents (Census, 2011). There are 63 municipalities within the County consisting of 32 boroughs, 30 townships and the city of Johnstown. The County is approximately 71 miles east of Pittsburgh via US Route 22, and 143 miles west of Harrisburg via Interstate 76.