SSC CGL 2022 PYQ — Question 31

The correct answer is option 4 i.e. Scorpions.

Pseudocoelomates are animals whose body cavity is pseudocoelom, i.e. the mesoderm is present as scattered pouches in between the ectoderm and endoderm rather than as a continuous layer.

• Pseudocoelomate animals are also known as Blastocoelomate animals. 

On the other hand,Scorpion belongs to group Arthropoda which possess true body cavity, i.e., coelom and hence called coelomates.

• A coelomate animal has a body cavity in which well-developed organs can be accommodated. For example, annelids, molluscs, and arthropods.Coelom is a cavity lined by mesoderm and is present between the alimentary canal and body wall. The organisms that have true coelom are triploblastic, i.e. ectoderm, mesoderm, and endoderm.