The exoskeleton of arthropoda is made mostly of a tough protein called chitin, a long chain polymer comparable to cellulose. It fills the same role as the protein keratin in other animals where it would be found in hair, nails, hooves, claws, beaks, etc.
Some arthropods, like crustaceans, further harden their chitin exoskeleton by biomineralization with calcium carbonate. Because it is inflexible, the organism has to periodically shed it (moult) in order to grow.
Organisms would be classified as arthropods if they have segmented bodies, an exoskeleton made from chitin, and joint appendages. This includes arachnids, crustaceans, insects, and others. Note that the term 'anthropod' should not be confused with 'arthropod' - anthropod is not a phylum nor taxon but is a general term meaning human or humanoid.
"Anthropod" isn't a phylum, but refers rather to a bipedal human or humanoid. The similar-spelled "Arthropod" should not be confused with it. Arthropoda is a phylum under the animal kingdom characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.
Anthropods do have backbones but arthropods do not. The presence of a backbone implies chordate phylum membership; by contrast, arthropods have their skeletons on the outside (exoskeleton). Note that the term 'anthropod' should not be confused with 'arthropod' - anthropod is not a phylum nor taxon but is a general term meaning human or humanoid.
A live anthropod would be any non-dead human. Anthropods (bipedal humans or humanoids) should not be confused with arthropods; Arthropods are characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages. Some arthropods are no longer living (extinct), like trilobites and the class Marrellomorpha.
It is animal with a segmented body, exoskeleton and jointed appendages, belonging to the phylum Arthropoda. Examples are insects, spiders, scorpions, millipedes, crayfish, crabs, trilobites, and many other groups are all arthropods. A terrestrial arthropod also breathes air at some stage in its life cycle.
NO it is not
The chief characteristic of arthropods would be their exoskeleton, made mostly of a tough protein called chitin; this gives them a segmented appearance and necessitates jointed appendages (hence the phylum's name, Arthropoda, which comes from Greek for jointed foot or jointed leg). Note that the term 'anthropod' should not be confused with 'arthropod' - anthropod is not a phylum but is a general term meaning human or humanoid.
No they are not vertebrates
The exoskeleton of arthropoda is made of a tough protein called chitin, a long chain polymer comparable to cellulose. It fills the same role as the protein keratin in other animals, found in hair, nails, hooves, claws, beaks, etc. Some arthropods, like crustaceans, further harden their exoskeleton by biomineralization with calcium carbonate. Because it is inflexible, arthropods have to periodically shed it (moult) in order to grow.
"Anthropod" isn't a phylum, but refers rather to a bipedal human or humanoid. The similar-spelled "Arthropod" should not be confused with it. Arthropoda is a phylum under the animal kingdom characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.
ant anthropod
The legs.