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.
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