Body Cavity & Coelom in Animal Classification — NEET
📚 Practice ConceptHow useful is the study of the nature of body cavity and coelom in the classification of animals?
Which of the following statements accurately describe the nature of body cavities in different animal groups? S1: The body cavity of a pseudocoelomate animal, such as Aschelminthes, is characterized by mesoderm being present as scattered pouches between the ectoderm and endoderm. S2: In coelomates, the true coelom is completely lined by mesoderm, a condition observed from Annelida to Chordata. S3: Platyhelminthes are considered acoelomates because their developing embryo lacks a mesodermal layer, thus no body cavity forms. S4: The presence of a pseudocoelom is an evolutionary advancement over a true coelom, allowing for more efficient organ placement and function. S5: Diploblastic animals, like Coelenterates, possess a rudimentary pseudocoelom due to the presence of mesoglea between ectoderm and endoderm.
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.