While trying to find out the characteristic of a newly found animal, a researcher did the histology

Question

While trying to find out the characteristic of a newly found animal, a researcher did the histology of adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alimentary canal. What could be the possible coelome of that animal?

Professor PC Thomas Classes · Answer

(d) : A body cavity where mesoderm is present only towards the body wall and not the alimentary canal is known as a pseudocoelom.