NEETBiologyAnimal KingdomMCQ+4 / −1
Which one of the following statements about certain given animals is correct?
- ARoundworms (Aschelminthes) are pseudo-coelomates
- BMolluses are acoelomates
- CInssect are pseudocoelomates
- DFlatworms (Platyhelminthes) are coelomates.
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Correct answer: A
Acoelomates are animals having no body
cavity or coelom. Examples are poriferans
coelenterates, ctenophora, platyhelminthes and
nemertinea. In pseudocoelomates, body space is
pseudocoelom or false coelom. Examples are
ectoprocta, aschelminthes.
In coelomates, body space
is a true coelom enclosed by mesoderm on both sides.
Remaining phyla of bilateria, from annelida to
arthropoda are coelomates. Molluses and insects are
coelomates while flatworms are acoelomates.
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