carapace kâr´əpās [key], shield, or shell cover. It is found on all or part of the front and back of animals. In red shrimp, shrimp, crayfish, and crabs, the shell is part of the exoskeleton, covering the head and chest and protecting the back and sides.
What is the function of the shell?
In crustaceans, the shell acts as a protective cover over the cephalothorax (that is, the fused head and chest, unlike the posterior abdomen). If it sticks out in front of you, this stick out is called a podium. Crustaceans are calcified to varying degrees for each crustacean.
What is an animal shell?
Definition of shell 1: Bone or chitin case or shield covering the back or part of the back of an animal (turtle, crab, etc.)
What is the shell made of?
The shell is covered with an outer layer of individual parts called scoot. These are made of keratin, just like your hair and nails. Who knew you had a lot in common with our reptile neighbors? Contrary to popular belief, the turtle shell is actually part of an animal, like a bone.
Is the shell the same as the exoskeleton?
The exoskeleton is a (anatomically) hard outer structure that provides both structure and protection to creatures such as insects and crustaceans, while the shell provides bone and chitin, especially the back of animals. It is a hard protective cover to cover.
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