The term 'class' has a specific connotation within taxonomy and there exist subdivisions between phyla and classes which might make the comparison easier. Under arthropoda are Subphyla Chelicerata, Myriapoda, Crustacea, and Hexapoda. (There is also an extinct class Marrellomorpha and an the extinct Trilobite subphylum). The chelicerata, like Spiders, scorpions, mites, etc., get their name from having appendages appear before the mouth; myriapods like centipedes and millipedes characterized by a high count of body segments and legs; crusteceans like crabs, shrimp, woodlice characterized by their biramous (two-part) limbs and a specialized larval form; hexapoda named for their consolidated thorax with only three pairs of legs.
Many classes exist below these subphyla each with specific characteristics; for example classes Arachnida which are terrestrial and eight legged, Chilopoda which are metameric and have one pair of legs per body segment, Branchiopoda which have gills on their appendages, Insecta with their three part body and three legs, and Malacostraca which have usually 20 body segments divided into head, thorax and abdomen - but there are many more.
In taxonomy, arthropods would not be an order but a much larger grouping called a phylum (phylum Arthropoda). Taxa are hierarchical, with the smaller divisions below phyla being subphyla, and within them, the classes/subclasses, then below that, the Orders. You might say that phylum Arthropoda has a lot of orders "inside it."
No. Arthropods are members of the phylum Arthropoda; but hydrae are members of the phylum Cnidaria. The closest to a "common" term for animals in this phylum that exists is "cnidarians".
Crabs are arthropods, so it is phylum Arthropoda.
Pearls come from pearl oysters which are bivalves belonging to phylum Mollusca (the molluscs); a different phylum than Arthropoda (the arthropods).
No. All arthopods belong to the phylum Arthropoda, while all reptiles (along with other vertebrates) belong to the phylum Chordata
The arthropods are a phylum, a larger division than a class. Arthropoda has classes within it.
All arthropods by definition belong to phylum Arthropoda.
All insects are arthropods. The phylum Arthropoda contains the classes Insecta (insects), Crustacea (crabs, lobsters, etc), Chelicerata (arachnids) and a few others.
No. Arthropoda is a phylum, containing the classes Insecta, Arachnida, Crustacea and Myriapoda - insects, arachnids, crustaceans and centi/millipedes. So all insects are arthropods but not all arthropods are insects. ^^
Some animals in phylum arthropods is a spider, centipedes or crabs.
All insects are in the phylum of Arthropods.
In taxonomy, arthropods would not be an order but a much larger grouping called a phylum (phylum Arthropoda). Taxa are hierarchical, with the smaller divisions below phyla being subphyla, and within them, the classes/subclasses, then below that, the Orders. You might say that phylum Arthropoda has a lot of orders "inside it."
"Arthropods"
arthropods
No. Arthropods are members of the phylum Arthropoda; but hydrae are members of the phylum Cnidaria. The closest to a "common" term for animals in this phylum that exists is "cnidarians".
The opposite of arthropods would be non-arthropods or invertebrates that do not belong to the phylum Arthropoda.
The largest phylum in the animal kingdom is Arthropoda, which includes insects, spiders, crustaceans, and other related organisms. It is estimated that over 80% of described animal species belong to this phylum.