Locomotion in Nematodes Is Achieved by

Locomotion in nematodes is achieved by

A) antagonistic longitudinal muscles that work against each other producing a sideways undulation.
B) longitudinal muscles that increase the hydrostatic pressure in the pseudocoelom causing it to undulate.
C) a series of hairs that project backwards and engage the substrate allowing the animal to move forward only.
D) successive waves of body contraction that move along the length of the animal.
E) rapid expulsion of water through a muscular tube.