Lobster
Arthropoda (arthropods, including insects, arachnids, and crustaceans)
No, a crawdad is a crustacean. Insects and crustaceans are both in phylum Arthropoda, though.
An arthropod is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. Arthropods are members of the phylum Arthropoda, which together mean "jointed leg", and include the insects,arachnids, and crustaceans. (Ant, Spider and Crab)
Arthopada is the phylum, crustacean is the class, and from there, there are many families, genus', and species'
crustacean is a class of Phylum Arthrapoda.
Arthropod is a phylum, not a class. It is one of the largest phyla in the animal kingdom and includes creatures like insects, spiders, and crustaceans. Within the phylum Arthropoda, there are several classes, such as Insecta, Arachnida, and Crustacea.
The arthropod group containing crabs is known as crustaceans. This is a very large group of this phylum and contains so many species.
Crab classification: Phylum - Arthropoda Subphylum - Crustacea Class - Malacostraca Order - Decapoda
Animal Kingdom, phylum Crustacea
Insects are animals, so they belong to the kingdom Animalia.
The fiddler crab is both a crustacean (a subphylum, comprising usually marine arthropods) and an arthropod (a phylum characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.)
Butterfly or Rhopalocera is an insect that is under phylum Arthropoda. Insects are joined by arachnids and crustaceans as Arthropod invertebrates.