All of the following are types of symbiotic relationships except for a. commensalism. b. competitive exclusion. c. mutualism. d. parasitism.

B beacuse commensalismis synoptic and so are the rest

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