Which one assists in locomotion?
(a) Trichocysts in Paramecium
(b) Pedicellariae of starfish
(c) Clitellum in Pheretima
(d) Posterior sucker in Hirudinaria
(a) Trichocysts in Paramecium
(b) Pedicellariae of starfish
(c) Clitellum in Pheretima
(d) Posterior sucker in Hirudinaria