Which one of the following is a matching pair of a body feature and the animal possessing it?

Step-by-step solution

The ventral nerve cord is found in insects and is functionally equivalent to the vertebrate spinal cord. This kind of nervous system is found in leeches and some of the annelids and arthropods. The scorpion possesses a dorsal heart, Post anal tail is usually seen in cobras belonging to the phylum Chordata. Pharyngeal gill slits are found in the embryos of all vertebrates due to their common ancestors, the fish, who were the first one to have these structures.