Squid belong to the class of mollusks known as cephalopods, which includes octopuses, cuttlefish, and nautiluses. Most squid have eight arms and two long feeding tentacles, which feed into a central mouth armed with a sharp, parrot-like beak.quid belong to the class of mollusks known as cephalopods, which includes octopuses, cuttlefish, and nautiluses. Most squid have eight arms and two long feeding tentacles, which feed into a central mouth armed with a sharp, parrot-like beak.
Matter is a substance that has inertia and occupies physical space. According to modern physics, matter consists of various types of particles, each with mass and size. The most familiar examples of material particles are the electron, the proton and the neutron. Combinations of these particles form atom s.
substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes. matter - that which has mass and occupies space; physicists study both the nature of matter and the forces which govern it. body substance - the substance of the body.