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.
Stoystown is a borough in Somerset County, Pennsylvania, United States. It is part of the Johnstown, Pennsylvania Metropolitan Statistical Area. The population was 428 at the 2000 census. Stoystown is located SSE of Johnstown and northeast of Somerset. Stoystown is located at 40Â°6â²10â³N 78Â°57â²14â³W / 40.10278Â°N 78.95389Â°W / 40.10278; -78.95389 (40.102753, -78.953869). According to the United States Census Bureau, the borough has a total area of 0.2 square miles (0.5 kmÂ²), all of it land.