They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
arthropods
exoskeleton
The arthropods fall into a categorization (taxon) called a phylum (in taxonomic nomenclature there is an entity called a 'class' which is below the phyla). Arthropods have segmented bodies, an exoskeleton made from chitin, and joint appendages.
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.
Before they moult it, the protective coating of arthropods is referred to as the exoskeleton. The pieces of moulted exoskeleton after removal are called exuviae.
The taxonomic grouping of arthropods is called a phylum. Among other traits, arthropods are characterized by joint appendages and segmented bodies covered by an exoskeleton made of chitin. They have an internal body cavity called a hemocoel and an open circulatory system.
MANDIBLE
Insecta
hemolypmh
Endoskeleton
The category (taxon) for arthropods is called a phylum, a major division in the classification scheme for living things. Arthropods have segmented bodies, an exoskeleton made from chitin, and jointed appendages.