Which one of the following statements about certain given animals is correct?
Correct answer: A. Roundworms (Aschelminthes) are pseudocoelomates
- A. Roundworms (Aschelminthes) are pseudocoelomates
- B. Molluses are acoelomates
- C. Insects are pseudocoelomates
- D. Flatworms (Platyhelminthes) are coelomates
Explanation
Roundworms, or Aschelminthes, are indeed pseudocoelomates. They have a body cavity called a pseudocoelom that is partially lined with mesoderm, unlike true coelomates where the coelom is entirely surrounded by mesoderm. This pseudocoelom provides some space for organ development and circulation of fluids.
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