The opposite of arthropods would be non-arthropods or invertebrates that do not belong to the phylum Arthropoda.
Only some arthropods have a cephalothorax, like for example the lobster. Other arthropods have functionally separate (or non-fused) head and thorax, like many insects.
Pretty much all bugs are arthropods, with the exception of an informal usage of the word "bug" to describe a pathogen causing an illness. All insects are arthropods; non-insect arthropods like myriapods (centipedes and millipedes for example) are called bugs and are still arthropods. Arachnids including spiders and scorpions, which might be called bugs, are also arthropods; land crabs which might be referred to as "bugs" are arthropods. In biology there is a group of insects called the "true bugs", including the shield bugs; also arthropods.
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
eagles and chickens are both considered birds however chickens are non-flying birds unlike eagles.
The Crustacean group (usually considered a sub-phylum) are mostly marine arthropods, and include krill, shrimp, crabs and lobster; there are non-aquatic exceptions in this group like terrestrial woodlice.
NO Mammals are not arthropods. Arthropods are insects.
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.
The bodies of arthropods are supported by a hardened exoskeleton made of chitin, a substance produced by many non-arthropods as well. In arthropods, the nonliving exoskeleton is like a form-fitting suit of armor.
arthropods are eukaryotic because arthropods are animals.
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
The West Coast Eagles.