JAMB - Biology (2000 - No. 6)
Coelom is absent in the class of animals termed
mollusca
reptilia
arthropoda
coelenterata
توضیح
A coelom is a fluid-filled body cavity that is lined with mesodermic tissues. Coelenterates, also known as cnidarians, are acoelomates, meaning they do not have a coelom. Instead, they have a gastrovascular cavity, which is not a true body cavity. Every other animals in the options have coelum except coelenterata - Option D