What are the organisms of an octopus?

An octopus is a marine mollusk belonging to the class Cephalopoda. It has a soft body, eight flexible arms lined with suckers, and a complex nervous system. Octopuses are known for their intelligence, ability to camouflage, and unique features like a beak and ink sac for defense. They primarily inhabit ocean environments, often found in coral reefs, rocky crevices, and deep-sea habitats.