The cephalothorax on some arthropods is a tagma, a functional grouping or fusing of segments effectively combining the head and thorax, such as you might see on a lobster (which still has a distinct abdomen). By contrast, many insects (also arthropoda) have a separate head and thorax.
Lobsters are belong to the Phylum of Arthropoda.
The phylum of housefly is Arthropoda.
Arthropoda.
arthropoda the same as crustecans
Ants belong to the phylum Arthropoda
Head and Thorax (Arachnids have cephalothorax, ex: spiders and scorpions)
Arthropod
the head and thorax
First of all, only the cephalothorax is inflexible. The tail is flexible, and if you look at it closely, it is clearly segmented. The cephalothorax is actually also segmented internally, but is masked by the shell, called a carapace.
The dragonfly belongs to the phylum Arthropoda.
Lice belong to the phylum Arthropoda.
Cephalothorax