exoskeleton
It's called an exoskeleton, exo being outside.
No, the rigid outer covering of arthropods is usually called the exoskeleton. In biology the mantle is a major anatomical component of a different phylum - molluscs, the tissue which contains the internal organs and in many molluscs responsible for secreting the mineralized outer shell.
Since the external covering (exoskeleton) is inflexible, it's necessary for arthropods to periodically shed it (moult) in order to grow, a process called ecdysis.
Crayfish are crustaceans, and therefore have a shell-like outer covering called an exoskeleton.
The external covering on arthropods is called the exoskeleton (or cuticle). It is made of a tough protein called chitin, a long chain polymer comparable to cellulose. Because it's inflexible, arthropods need to shed it (moult) in order to grow.
Telson
The exoskeleton.exoskeleton
It is called the exosketon. It is made from a hard protein, chitin, which arthropods often biomineralize for further strength.
All arthropods have the followingcharacteristics.1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body__ Nissy 2012
All arthropods have the followingcharacteristics.1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body__ Nissy 2012
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
The bodies of arthropods are supported by a hardened exoskeleton made of chitin, a substance produced by many non-arthropods as well. In arthropods, the nonliving exoskeleton is like a form-fitting suit of armor.