NEET BIOLOGY

Detailed explanation-1: -Humans have a coelom and are known to be eucoelomates (Animals that have a true coelom). It is a cavity not found in the human adult and is found in embryonal stages which divides to other cavities.

Detailed explanation-2: -Thus, humans are coelomates. They are not pseudocoelomates.

Detailed explanation-3: -The protostome coelomates (acoelomates and pseudocoelomates are also protostomes) include the mollusks, annelids, arthropods, pogonophorans, apometamerans, tardigrades, onychophorans, phoronids, brachiopods, and bryozoans. Deuterostomes include the chaetognaths, echinoderms, hemichordates, and chordates.

Detailed explanation-4: -The coelom is the mesodermally lined cavity between the gut and the outer body wall. During the development of the embryo, coelom formation begins in the gastrulation stage. The developing digestive tube of an embryo forms as a blind pouch called the archenteron.