Nematodes Move with Characteristic Whiplike Movements

Multiple Choice

Nematodes move with characteristic whiplike movements.They are incapable of localized contractions along the body wall,similar to those observed in earthworms.Which of the following elements of nematode structure explain their particular form of locomotion? Check all that apply.

A) Nematodes have a collagenous cuticle that is flexible but tough.
B) Nematodes have both circular and longitudinal muscles associated with their body wall.
C) Nematodes are pseudocoelomate.
D) Nematodes have longitudinal muscles associated with their body wall.