5. Cerebrospinal fluid is A) is secreted by ependymal cells.
B) is formed by a passive process.
C) is normally produced twice as fast as it is removed.
D) has almost the same composition as blood plasma.
E) contains blood cells and blood plasma

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Ifound this information on google “yes. they have a mouth and brain at one end and an anus at the opposite end. what characteristics distinguish an annelid from other worms? annelids have segmented bodies and a coelem which is a tube filled with fluid and contains most of the organs.“ i hope it you