Examples of primitive arthropods might include the trilobite, thought to have made an appearance in the pre-Cambrian period about 500 million years ago. The fossil record indicates they were highly diverse with well over 10,000 species and thrived for over 250 million years, but finally going extinct around the end of the Permian period. Another great example might be the Eurypterid or sea scorpion, a paleozoic arthropod believed to predate the earliest fish.
Of those still alive, the peripatus (a genus of the velvet worms) would be a serious contender, primitive in origins and considered the simplest known arthropod, a 'living fossil' dating back 570 million years and thought to be a connecting link between the arthropods and annelids (segmented round worms, like the earthworm).
An arthropod
Nope - it's a member of the Jellyfish family, not an arthropod.
Barnacles
although an octopus has eight arms or tantacles
An arthropod's main features are the segmented body, an exoskeleton made from chitin, and joint appendages.
Depends on which arthropod you're getting at. Dragonflies, silverfish and cockroaches are pretty primitive as they haven't changed much since amphibians crawled onto the land, but butterflies, bees and stick insects are about dinosaur age, with leaf insects possibly being an even younger 'design'.All in all, every species has had equal time to evolve, and even species resembling the ancestral form (like dragonflies) have changed during all that time.
An arthropod
Vectors of the arthropod.
As the arthropod grows up, the exoskeleton sheds in order for the arthropod to grow inside of it.
arthropod
yes a beetle is an arthropod
The Blowjob arthropod family
A crab is an arthropod.
Yes, a moth is considered to be an arthropod.
a mit is a arthropod because it has no back bone
yes, a moth is an arthropod. are you dumb or something man.
No. It does not have an external skeleton, which is one of the main characteristics of an arthropod.