Are All Insects Arthropods
Arthropods have been around for a long time.
Are all insects arthropods. The term arthropod comes from the greek arthron joint and pous foot so literally means jointed foot. Arthropods are divided into four major groups. Crustaceans including slaters prawn and crabs. They include many animals we come across in our gardens such as spiders ants centipedes and slaters.
Insects arachnids myriapods and crustaceans are all arthropods. Arthropoda is a phylum containing the classes insecta arachnida crustacea and myriapoda insects arachnids crustaceans and centi millipedes. Arthropods definition an arthropod is an invertebrate animal that has an exoskeleton a segmented body and jointed appendages. So all insects are.
The following families of organisms are all examples of arthropods. Arachnids for example are arthropods but not insects. Arthropods are invertebrate animals with an exoskeleton a segmented body and paired jointed appendages legs antennae mouthparts etc. Newly born arthropods have diverse forms and insects alone cover the range of extremes.
Although all arthropods use muscles attached to the inside of the exoskeleton to flex their limbs. Many insects hatch as. All insects are arthropods but not all arthropods are insects. Some hatch as apparently miniature adults direct development and in some cases such as silverfish the hatchlings do not feed and may be helpless until after their first moult.
Insects such as ants dragonflies and bees. Myriapods including centipedes and millipedes. Arachnids including spiders mites and scorpions.