Reimchen (1989) First Described a System of Batesian Mimicry Involving

Multiple Choice

Reimchen (1989) first described a system of Batesian mimicry involving the juvenile stage of a snail and the tubes of a polychaete worm, where, overall, white-spiral snails (rather than yellow or brown, and which are virtually indistinguishable from the tubes of a polychaete worm) suffered the lowest number of attacks and the reduction in attacks was greater on fronds with polychaete tubes (9.4%) than on fronds devoid of tubes (22.9%) . This type of mimicry appears to offer a protective advantage to the snail because the

A) polychaete tubes are difficult for the predator fish to remove from the substrate.
B) polychaete tubes are noxious to the predator fish.
C) tubes of the polychaetes are always occupied once the predator fish manage to remove them.
D) tubes of the polychaetes are highly toxic to predator fish.