One answer, found in other groups than this one, is to circulate carrier fluid to bring things in to and away from the cells of the interior; flatworms use a simpler but more limiting response. Because a flatworm is flat, even its innermost cells are close to a surface.
Framingham, Massachusetts. Framingham /ËfreÉªmÉªÅËhÃ¦m/ ( listen) is a town in the Commonwealth of Massachusetts in the United States. Incorporated in 1700, it is located within Middlesex County and the MetroWest subregion of the Greater Boston metropolitan area.
Stoneham is a town in Middlesex County, Massachusetts. Its population was 21,437 at the 2010 census, down from 22,219 in 2000. The town is the birthplace of Olympic figure skating medalist Nancy Kerrigan and is the home of the Stone Zoo. The earliest documented mention of the territory now called Stoneham dates to the year 1632, when on February 7 Governor Winthrop and his party came upon this area. They found Spot Pond and ate their lunch on a place they called Cheese Rock, now known as Bear Hill.