An advantage of a complete digestive system over a gastrovascular cavity is that the complete system ) excludes the need for extracellular digestionb) allows for specialized regions with specialized functionsc) allows extensive branchingd) facilitates intracellular digestion

B. Allows for specialized regions with specialized functions

Explanation:

Where the complete digestive system has different specialized regions to perform specialized functions, the gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Cnidaria (including jellyfish and corals) and Platyhelminthes (flatworms).

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?