Web5 Mar 2024 · Mollusks have a hard outer shell. There is a layer of tissue called the mantle between the shell and the body. Most mollusks have tentacles for feeding and sensing, and many have a muscular foot. Mollusks also have a coelom, a complete digestive system, and specialized organs for excretion. The majority of mollusks live in the ocean. Web30 Sep 2024 · The main reason the shell needs to be strong is that they have soft bodies. The softness makes them vulnerable to predators. Moreover, they need the shell so the internal organs stay safe and protected constantly. It is easier for the snails to keep up the strength of the shell as the shell is almost entirely made out of calcium carbonate.
Clams Anatomy - Barnegat Bay Shellfish
Web21 Feb 2024 · Peek inside (or use x-ray vision) and you will see that the shell consists of 60 bones made out of the ribcage, the backbone, the vertebrae, and the breastbone. Consequently, unlike snakes or crustaceans who perform shedding, turtles do not abandon their shells but instead grow with them. Web4) Immortality. Even though life is short, there is another life after death. Therefore, seashells are a sign of immortality. They remind us of a life in the underworld and encourage us to live a good life right now; because that is a major factor in our experience in the underworld. rachat groupe atalian
The periodic table, electron shells, and orbitals - Khan Academy
Web16 Jan 2024 · Turtle shells are incredibly strong and protect the turtle. They may, however, not be as tough as you assume. The leathery shells of softshell turtles are extraordinarily soft to the touch. Softshell turtle species, though, are fairly rare. Even turtles with hard shells have soft parts. This is the collagen and the scutes of the shell. WebThey have shells and belong to a group of animals called bivalves. This means that their shells are divided into two parts, or valves. These valves completely enclose and protect … Web13 Sep 2024 · In general, their shells have from 2 to 6 weakly convex whorls. The main color of the shells is yellowish-brown with different variations (light-brown to dark-brown). In some cases, the shell can have tiny dark spots, however, there are usually no obvious markings. They have thick, triangular-shaped tentacles. Pond snails can be very large. shoe repair shop brandon fl