E1C3T1O1S1A1R1C3
12 points
ECTOSARC is validvalid
the outermost layer of protoplasm of certain protozoans [n ECTOSARCS]
the outermost layer of some protozoans [n -S]
the outermost layer of protoplasm of certain protozoans [n ECTOSARCS]
the outermost layer of some protozoans [n -S]