How would you characterize the pattern of movement in a typical roundworm? How does a roundworm move? How would you explain the movement pattern based on the types of muscle groups one finds in this phylum?
a. Roundworms move by slithering in a serpentine fashion due to longitudinal muscles contracting alternately. This pattern is facilitated by their lack of appendages.
b. Roundworms move by hopping and leaping using their powerful hind limbs, which are unique to this phylum.
c. Roundworms move by rolling their bodies into a ball and rolling along the ground. This is due to circular muscles contracting in sequence.
d. Roundworms move by floating in water and using their cilia to paddle. The movement is enabled by their ciliated body covering.
