Under the arthropoda phylum are subphyla Chelicerata, Myriapoda, Crustacea, and Hexapoda. (There is also an extinct class Marrellomorpha and an the extinct Trilobite subphylum). The chelicerata include Spiders, scorpions, mites, etc. Myriapods include centipedes and millipedes. Crustaceans include lobsters, krill, crabs, shrimp, woodlice, etc. Hexapoda include the class Insecta, the insects.
myriapada-millipedescrustacia-crayfishinsecta-insectsarachnida-spiders
There are four different groups of Arthropods. The group with four pairs of legs are Spiders.
First were the plants and fungi, then came the arthropods, then finally the vertebrates.
Four actually, and that's just the big ones. Insects, arachnids, crustaceans and multipedes.
Porifera (Sponges)Cnidaria (Coelenterates)Flatworms (Platyhelmenthes)Roundworms (Aschelmenthes - Nematode)Segmented worms (Annelids)Mollusks (Soft-Bodied/ hard shelled Animals)Echinoderms (Spiny-Skinned Animals)Arthropods
What?
The honeybee, the lobster, the woodlouse, and the horseshoe crab would be four examples of arthropods.
Arthropods means jointed legs. There are four types-MyripodsArachnidsCrustaceansInsectsJellyfish are soft .
PriestsWarriorsSecretariesPeasants
ingestion, digestion, abosrtion, and extretion
four hours
arthropods have three main examples of it which are sponges,worms,and clams i think by sally