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.
Fredericktown-Millsboro is a census-designated place (CDP) in East Bethlehem Township, Washington County, Pennsylvania, United States. The population was 1,094 at the 2000 census. Fredericktown-Millsboro is located at 39Â°59â²42â³N 79Â°59â²58â³W / 39.995Â°N 79.99944Â°W / 39.995; -79.99944 (39.995095, -79.999370). According to the United States Census Bureau, the CDP has a total area of 1.8 square miles (4.5 kmÂ²), all of it land.