Which of the Following Statements Describes Locomotion in Nematodes

question 124

Multiple Choice

Which of the following statements describes locomotion in nematodes?

• A) Rhythmically beating cilia move the animal forward.
• B) Circular and longitudinal muscles work against each other and the pseudocoelom to change the shape of the animal, moving it forward.
• C) Longitudinal muscles contract.
• D) A series of hairs that project backward engage the substrate; back-and-forth movements propel the animal forward.
• E) Water expelled through special ducts moves the animal forward.

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