Which one of the following is not a characteristic of phylum Annelida?
Which one of the following is not a characteristic of phylum Annelida?
Ventral nerve cord
Closed circulatory system
Segmentation
Pseudocoelom
Solution
Phylum Annelida comprises of invertebrates, which are segmented having cylindrical soft bodies showing metameric segmentation. These are triploblastic animals showing bilateral symmetry. A true coelom is present which is filled with coelomic fluid containing cells. Annelids are perhaps the first animals to have a true coelom.