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.
Matter is anything that takes up space and has mass or weight. Matter exists in three forms or states - solid, liquid and gas. All matter is made up of molecules, the smallest part of a substance that can still be that substance. Molecules in gases are far apart and they move around more. Gases have no definite size or shape. Liquids' molecules are closer together than those of gases but less so than those of solids.