The shell is the dorsal (upper) section of the exoskeleton or shell of many animal groups, including arthropods such as crustaceans and spiders, and vertebrates such as turtles and turtles.
What is the difference between shells and shells?
Difference between shell and shell as a nomenclature The shell is a hard protective cover for bones and chitin, especially covering the back of animals, and the shell is the calcareous of mollusks, shells and other invertebrates. Or a chitinous outer cover.
Is the shell a bone?
The shell and plastron are bone structures that normally join together along both sides of the body to form a rigid skeletal box. .. Carapaz and Plastron originated from two types of bone, the dermal bone formed in the skin and the endochondral bone (bone derived from cartilage) derived from the skeleton, respectively.
What is the part of the turtle shell called?
Each shell has an upper part called the shell and a lower part called the Plastron. The shell consists of a large, stiff scale called SCUTES. Most turtles have 13 shells on the top shell.
What is the shell of an insect made of?
Usually composed of amorphous calcium carbonate (crab and lobster calculus), and in insects, other calcium minerals such as calcium oxalate and calcium citrate (in addition to carbonate or phosphate species). Can also be seen.
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