Q. How is the nervous system of molluscs organized?
Molluscs have well-developed sensory structures. It is accepted that cephalopods, like squid and octopus, have eyes with image formation. Snails have a pair of well- defined eyes and antennae. Bivalves do not present eyes but they have tactile and photosensitive cells.
Cephalization is evident in neurons and molluscs concentrate in a ganglial pattern.