Zoology, can someone tell me the different of psudocoelomate and eucoelomate?

A eucoelom is a true coelom so yes, humans are eucoelomates. Our chest cavity is our coelom. A true coelom is a cavity within the mesoderm whereas a pseudocoelom is a cavity between the endoderm and mesoderm that is filled with fluid that acts as skeleton for nematodes and helps to maintain body shape and transport nutrients. Pseudocoelomates lack circulatory systems so the pseudocoelom is used for this purpose.