Clam, The

~ Classification The clam's kingdom is Anamalia, Phylum is Mollusk, which includes snails, clams, chitons, slugs, limpets, octopi, and squid, then Bivalvia or Pelecypoda is their class. Next their order is, unionoida, Family is unionoidae. ~ Habitat Clam is a common name for many species of bivalve mollusks that burrow wholly or partly into sand or mud by means of a hatchet-shaped muscular foot. These creature's habitats vary from salt water, to fresh water, or even land. …

…blood. Usually the heart is three-chambered. This means the blood moves through vessels and into open spaces around body organs. This adaptation exposes body organs directly to blood that contains nutrients and oxygen and removes metabolic wastes. ~ Nervous System They have a nervous system of paired ganglia with nerve cords and subepidermal plexus. The ganglia are centralized in a nerve ring in gastropods and cephalopods. They have sensory organs of touch, smell, taste, and equilibrium.