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.
Middlesex County. 1  City of Waltham websites: 2  Waltham online resources: 3  Waltham information from state agencies:  Regional information from state 1  agencies: Information specific to Waltham can also be found within the following comprehensive listings:  Other Waltham community websites: